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Sun Q, Yang H, Zhao T. Multistage stabilization of Cd, Pb, Zn, Cu and As in contaminated soil by phosphorus-coated nZVI layered composite materials: characteristics, process and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134991. [PMID: 38909473 DOI: 10.1016/j.jhazmat.2024.134991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 06/25/2024]
Abstract
This study developed a shell-like slow-release material, PF@ST/Fe-0.5, by encapsulating nanoscale zero-valent iron composites (NZC) with phosphate fertilizer (PF) and a starch binder (ST). The material dissolved in soil in stages, first releasing P and Ca to increase the soil pH from 4.95 to 7.14. This was followed by the formation of phosphates and hydroxides precipitates with Pb, Cu, Zn, and Cd in soil, reducing their bioavailable forms by 81.73 %, 79.58 %, 91.05 %, and 86.47 %, respectively. The process also involved the competitive adsorption between PO43-/HPO42- and arsenate/arsenite led to the release of specifically adsorbed arsenic, increasing the probability of reaction with the material. Afterwards, the exposure of the NZC core reacted with arsenate/arsenite to form ferric arsenates, thus reducing the content of bioavailable arsenic in the soil by 73.57 %. Excess PO43- and alkali metal cations were captured and mineralized by the iron (hydro) oxides and reactive silicates in NZC, enhancing the remediation effect. Furthermore, the wet-dry alternation test had demonstrated the adaptability of PF@ST/Fe-0.5 to the rainy dry-wet soil environment in Yunnan, which enabled the bioavailable content of As, Pb, Cu, Zn, and Cd decreased by 71.2 %, 94.8 %, 84.1 %, 79.8 %, and 83.9 %, respectively. The layered structure minimized internal reactive substance consumption and protected the internal nZVI from oxidation. The phased release of phosphate and Fe0 stabilized Pb, Cu, Zn, and Cd, enhancing As stabilization and providing a new perspective for the synchronous stabilization of soil contaminated.
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Affiliation(s)
- Qiwei Sun
- School of Civil and Resource Engineering, University of Science & Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, China; Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
| | - Huifen Yang
- School of Civil and Resource Engineering, University of Science & Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, China.
| | - Tong Zhao
- School of Civil and Resource Engineering, University of Science & Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, China; Key Laboratory of the Ministry of Education of China for High-efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
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2
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Liu K, Li F, Zhu Z, Fang L. Nanoconfined Fe(II) releaser for long-term arsenic immobilization and its sustainability assessment. WATER RESEARCH 2024; 260:121954. [PMID: 38909421 DOI: 10.1016/j.watres.2024.121954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 06/25/2024]
Abstract
Ferrous (Fe(II))-based oxygen activation for pollutant abatements in soil and groundwater has attracted great attention, while the low utilization and insufficient longevity of electron donors are the primary challenges to hinder its practical applications. Herein, we propose a nanoconfined Fe(II) releasing strategy that enables stable long-term electron donation for oxygen activation and efficient arsenic (As) immobilization under oxic conditions, by encapsulating zero-valent iron in biomass-derived carbon shell (ZVI@porous carbon composites; ZVI@PC). This strategy effectively enhances the generation of reactive oxygen species, enabling efficient oxidation and subsequent immobilization of As(III) in soils. Importantly, this Fe(II) releaser exhibits strong anti-interference capability against complex soil matrices, and the accompanying generation of Fe(III) enables As immobilization in soils, effectively lowering soil As bioavailability. Soil fixed-bed column experiments demonstrate a 79.5 % reduction of the total As in effluent with a simulated rainfall input for 10 years, indicating the excellent long-term stability for As immobilization in soil. Life cycle assessment results show that this Fe(II) releaser can substantially mitigate the negative environmental impacts. This work offers new insights into developing green and sustainable technologies for environmental remediation.
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Affiliation(s)
- Kai Liu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Fangbai Li
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Zhenlong Zhu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Liping Fang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China.
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3
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Wang X, Qian Y, Wang Y, Wang S, Bi J, Shi C, Han Q, Wan-Yan R, Yu Q, Li H. Metagenomics reveals the potential transmission risk of resistomes from urban park environment to human. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135387. [PMID: 39094311 DOI: 10.1016/j.jhazmat.2024.135387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/20/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Urban parks play a significant role in urban ecosystems and are strongly associated with human health. Nevertheless, the biological contamination of urban parks - opportunistic pathogens and antibiotic resistance genes (ARGs) - has been poorly reported. Here, metagenomic and 16 S rRNA sequencing methods were used to study the distribution and assembly of opportunistic pathogens and ARGs in soil and water from nine parks in Lanzhou city, and further compared them with local human gut microbiomes to investigate the potential transmission risk. Our results revealed that the most important type of drug resistance in urban parks was multidrug resistance, with various resistance mechanisms. Approximately half of ARGs were shared between human gut and park environment, and it was noteworthy that cross-species transmission might exist among some high-risk ARGs, such as mepA and mdtE, with a significant enrichment in human gut. Metagenomic binning uncovered several bacterial genomes carrying adjacent ARGs, MGEs, and virulence genes, indicating a possibility that these genes may jointly transfer among different environments, particularly from park environment to human. Our results provided a reference point for the management of environmental pollutants in urban parks.
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Affiliation(s)
- Xiaochen Wang
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Yuan Qian
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Yu Wang
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Sijie Wang
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Jie Bi
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Chenwei Shi
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Qian Han
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Ruijun Wan-Yan
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Qiaoling Yu
- State Key Laboratory of Grassland Agro-ecosystems, Center for Grassland microbiome, Lanzhou University, Lanzhou 730000, China
| | - Huan Li
- School of Public Health, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Grassland Agro-ecosystems, Center for Grassland microbiome, Lanzhou University, Lanzhou 730000, China.
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Wang L, Jia B, Teng Z, Cao H, Miao Y, Guo H, Li T. Iron-based materials functionalized with carbon and phosphorus recovered from sludge enhanced the formation of stable minerals to passivate lead and chromium in wastewater and soil. CHEMOSPHERE 2024; 359:142340. [PMID: 38754487 DOI: 10.1016/j.chemosphere.2024.142340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 04/30/2024] [Accepted: 05/14/2024] [Indexed: 05/18/2024]
Abstract
The bioaccumulation and toxicity of heavy metals are serious threats to human activities and ecological health. The exploitation of environmentally friendly passivated materials is major importance for the remediation of heavy metal contaminated soil. This research developed a new type of environmental functional material with a core-shell structure, which is an iron-based material functionalized with phosphorus and carbon from sludge for heavy metal pollution remediation. The results indicated that the C/P@Fe exhibits excellent heavy metal removal ability, and the maximum removal rates of the two heavy metals in simulated wastewater could reach 100% under optimum reaction conditions. It also effectively converts the labile Cr/Pb into the stable fraction after 28 days of incubation, which increased the maximum residual fraction percentage of Cr and Pb by 32.43% and 160% in soil. Further analysis found that the carbon layer wrapped around the iron base could improve the electron transport efficiency of reducing iron, phosphorus and ferrum could react with heavy metal ions to form stable minerals, such as FeCr2O4, FeO·Cr2O3, Pb5(PO4)3OH, PbCO3, 2PbCO3·Pb(OH)2 and PbS, after reacting with C/P@Fe. The study demonstrated that the Iron-based materials functionalized with carbon and phosphorus from sludge provided a more efficient way to remove heavy metals.
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Affiliation(s)
- Liyan Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, 100083, China
| | - Bojie Jia
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, 100083, China; CAS Key Laboratory of Green Process and Engineering, Beijing Engineering Research Centre of Process Pollution Control, National Engineering Research Center of Green, Recycling for Strategic Metal Resources, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zedong Teng
- CAS Key Laboratory of Green Process and Engineering, Beijing Engineering Research Centre of Process Pollution Control, National Engineering Research Center of Green, Recycling for Strategic Metal Resources, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Hao Cao
- CAS Key Laboratory of Green Process and Engineering, Beijing Engineering Research Centre of Process Pollution Control, National Engineering Research Center of Green, Recycling for Strategic Metal Resources, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanli Miao
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, 100083, China; CAS Key Laboratory of Green Process and Engineering, Beijing Engineering Research Centre of Process Pollution Control, National Engineering Research Center of Green, Recycling for Strategic Metal Resources, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Huiyuan Guo
- CAS Key Laboratory of Green Process and Engineering, Beijing Engineering Research Centre of Process Pollution Control, National Engineering Research Center of Green, Recycling for Strategic Metal Resources, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tinggang Li
- CAS Key Laboratory of Green Process and Engineering, Beijing Engineering Research Centre of Process Pollution Control, National Engineering Research Center of Green, Recycling for Strategic Metal Resources, Innovation Academy for Green Manufacture, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; Key Laboratory of Rare Earths, Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341119, China; State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Tian Y, Dong X, Deng C, Fan Y, Yang D, Chen R, Chai W. Preparation and characterization of high-ash coal slime-based soil amendment as well as investigations of its adsorption performance and mechanisms towards heavy metals in soil. CHEMOSPHERE 2024; 359:142295. [PMID: 38729445 DOI: 10.1016/j.chemosphere.2024.142295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/21/2024] [Accepted: 05/08/2024] [Indexed: 05/12/2024]
Abstract
In this study, high-ash coal slime-based mineral soil amendment (MSA) was prepared via the hydrothermal method using high-ash coal slime as raw material, supplemented with activator calcium oxide and additive KOH solution. After hydrothermal treatment at 230 °C for 5 h, the original crystalline phase (quartz and kaolinite) of the high-ash slime was completely transformed into hydrotalcite zeolite, tobermorite, and silicate of potassium aluminosilicate, which has the largest specific surface area. The adsorption of Pb2+ and Cd2+ was adherent to the kinetic equation of secondary adsorption and Freundlich models, and the removal of Pb2+ and Cd2+ reached up to 362.58 mg g-1 and 64.67 mg g-1. The successive releases of SiO2 and CaO from MSA conformed to the Elovich equation, whereas the releases of SiO2 in Cd-containing environments and CaO in Pb- and Cd-containing environments more closely conformed to the power function; the releases of K2O all conformed to the first-order kinetic equation. The presence of Pb2+ and Cd2+ in the environment promotes the release of potassium and calcium elements with MSA's ion-exchange ability, and attenuates the release of silicon elements. Combining Pb2+ and Cd2+ with silicon resulted in the intolerant precipitation of 3PbO·2SiO2 and Cd2SiO4. The mineral precipitation mechanism is the most important mechanism of MSA in immobilizing heavy metals, accounting for 72.7%-80.5% of the total adsorption. Further contaminated soil immobilization experiments also showed that the application of MSA significantly reduced the bioavailability of soil heavy metals. When the MSA addition amount was 1.6%, the residual state increased by 63.58%. In conclusion, preparing MSA may effectively utilize coal-based solid waste with high added value.
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Affiliation(s)
- Yanfei Tian
- Department of Mineral Processing Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineering Research Center of Ecological Mining, Taiyuan 030024, China
| | - Xianshu Dong
- Department of Mineral Processing Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi Engineering Research Center of Ecological Mining, Taiyuan 030024, China.
| | - Chunsheng Deng
- College of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Lab of In-situ Modification of Deposit Properties for Improving Mining, Ministry of Education of the People's Republic of China, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Yuping Fan
- Department of Mineral Processing Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Dong Yang
- Key Lab of In-situ Modification of Deposit Properties for Improving Mining, Ministry of Education of the People's Republic of China, Taiyuan University of Technology, Taiyuan 030024, China; State Center for Research and Development of Oil Shale Exploitation, Beijing 100083, China
| | - Ruxia Chen
- Department of Mineral Processing Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Wenjing Chai
- Department of Mineral Processing Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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Fan D, Peng Y, He X, Ouyang J, Fu L, Yang H. Recent Progress on the Adsorption of Heavy Metal Ions Pb(II) and Cu(II) from Wastewater. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1037. [PMID: 38921913 PMCID: PMC11206449 DOI: 10.3390/nano14121037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/11/2024] [Accepted: 06/11/2024] [Indexed: 06/27/2024]
Abstract
With the processes of industrialization and urbanization, heavy metal ion pollution has become a thorny problem in water systems. Among the various technologies developed for the removal of heavy metal ions, the adsorption method is widely studied by researchers and various nanomaterials with good adsorption performances have been prepared during the past decades. In this paper, a variety of novel nanomaterials with excellent adsorption performances for Pb(II) and Cu(II) reported in recent years are reviewed, such as carbon-based materials, clay mineral materials, zero-valent iron and their derivatives, MOFs, nanocomposites, etc. The novel nanomaterials with extremely high adsorption capacity, selectivity and particular nanostructures are summarized and introduced, along with their advantages and disadvantages. And, some future research priorities for the treatment of wastewater are also prospected.
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Affiliation(s)
- Dikang Fan
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
| | - Yang Peng
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
| | - Xi He
- Changsha Industrial Technology Research Institute (Environmental Protection) Co., Ltd., Changsha 410083, China;
- Aerospace Kaitian Environmental Technology Co., Ltd., Changsha 410083, China
| | - Jing Ouyang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
| | - Liangjie Fu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
| | - Huaming Yang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
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Zheng T, Fei W, Hou D, Li P, Wu N, Wang M, Feng Y, Luo H, Luo N, Wei W. Characteristic study of biological CaCO 3-supported nanoscale zero-valent iron: stability and migration performance. ENVIRONMENTAL TECHNOLOGY 2024:1-14. [PMID: 38853645 DOI: 10.1080/09593330.2024.2361487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/24/2024] [Indexed: 06/11/2024]
Abstract
nZVI has attracted much attention in the remediation of contaminated soil and groundwater, but the application is limited due to its aggregation, poor stability, and weak migration performance. The biological CaCO3 was used as the carrier material to support nZVI and solved the nZVI agglomeration, which had the advantages of biological carbon fixation and green environmental protection. Meanwhile, the distribution of nZVI was characterised by SEM-EDS and TEM carefully. Subsequently, the dispersion stability of bare nZVI and CaCO3@nZVI composite was studied by the settlement experiment and Zeta potential. Sand column and elution experiments were conducted to study the migration performance of different materials in porous media, and the adhesion coefficient and maximum migration distances of different materials in sand columns were explored. SEM-EDS and TEM results showed that nZVI could be uniformly distributed on the surface of biological CaCO3. Compared with bare nZVI, CaCO3@nZVI composite suspension had better stability and higher absolute value of Zeta potential. The migration performance of nZVI was poor, while CaCO3@nZVI composite could penetrate the sand column and have good migration performance. What's more, the elution rates of bare nZVI and CaCO3@nZVI composite in quartz sand columns were 5.8% and 51.6%, and the maximum migration distances were 0.193 and 0.885 m, respectively. In summary, this paper studies the stability and migration performance of bare nZVI and CaCO3@nZVI composite, providing the experimental and theoretical support for the application of CaCO3@nZVI composite, which is conducive to promoting the development of green remediation functional materials.
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Affiliation(s)
- Tianwen Zheng
- Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, People's Republic of China
| | - Wenbo Fei
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, People's Republic of China
| | - Daibing Hou
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, People's Republic of China
| | - Peizhong Li
- Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, People's Republic of China
| | - Naijin Wu
- Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, People's Republic of China
| | - Moxi Wang
- Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, People's Republic of China
| | - Yangfan Feng
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, People's Republic of China
| | - Huilong Luo
- Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, People's Republic of China
| | - Nan Luo
- Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, People's Republic of China
| | - Wenxia Wei
- Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing, People's Republic of China
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Zhang S, Zhou L, Tang K, Ren D, Zhang X. Study on the enhancement of citric acid chemical leaching of contaminated soil by modified nano zero-valent iron. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:224. [PMID: 38849581 DOI: 10.1007/s10653-024-02005-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/19/2024] [Indexed: 06/09/2024]
Abstract
This study aimed to evaluate the effect of modified nanoscale zero-valent iron (SAS-nZVI) on chemical leaching of lead and cadmium composite contaminated soil by citric acid (CA). The synthesized SAS-nZVI was used as a leaching aid to improve the removal rate of soil heavy metals (HMs) by CA chemical leaching. The effects of various factors such as SAS-nZVI dosage, elution temperature and elution time were studied. At the same time, the effect of chemical leaching on the basic physical and chemical properties of soil and the morphology of HMs was evaluated. The results show that when the SAS-nZVI dosage is 2.0 g/L, the leaching temperature is 25 °C, and the leaching time is 720 min, the maximum removal rates of Pb and Cd in the soil are 77.64% and 97.15% respectively. The experimental results were evaluated using elution and desorption kinetic models (Elovich model, double constant model, diffusion model). The elution and desorption process of Pb and Cd in soil by SAS-nZVI-CA fitted well with the double-constant model, indicating that the desorption kinetic process of Pb and Cd is a heterogeneous diffusion process, and the elution process is controlled by diffusion factors. After leaching with SAS-nZVI-CA, the physical and chemical properties of the soil changed little, the mobility and toxicity of HMs in the soil were reduced, and the HMs content in the leaching waste liquid was reduced. It can be concluded that SAS-nZVI enhances the efficiency of CA in extracting Pb and Cd from soil, minimizes soil damage resulting from chemical leaching technology, and alleviates the challenges associated with treating leaching waste liquid.
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Affiliation(s)
- Shuqin Zhang
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, 430081, China.
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China.
| | - Linyuan Zhou
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, 430081, China
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Kan Tang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Dajun Ren
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, 430081, China
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Xiaoqing Zhang
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, 430081, China
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
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9
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Wang Y, Yang Y, Zhou Y, Jiang F, Zheng Y, Tan W, Yi X, Dang Z. Turning harmful Mn 2+ to treasure: In-situ formed ε-MnO 2 for removing heavy metals from acid mine drainage. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171709. [PMID: 38494016 DOI: 10.1016/j.scitotenv.2024.171709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/02/2024] [Accepted: 03/12/2024] [Indexed: 03/19/2024]
Abstract
Acid mine drainage (AMD) contains high concentrations of heavy metals, causing serious environmental pollution. Current neutralization techniques fail to recover and utilize valuable heavy metals, and generate large quantities of hazardous sludge. Manganese (Mn) is generally present at high levels in AMD. Therefore, this paper proposed a technology to recover Mn from AMD, by adding KMnO4 to converting Mn into ε-MnO2. Ultra-Violet C (UVC) was used to photolyze the residual KMnO4. The study then evaluated the processes and mechanisms involved in the technology. The photolysis of KMnO4 in strong acidic conditions was determined, and new mechanisms were proposed. MnO2 produced by the photolysis process was formed through the reaction between Mn(III) and KMnO4. In the absence of KMnO4, Mn(III) underwent further photolysis and was reduced to Mn2+. The maximum adsorption capacities of in-situ formed ε-MnO2 for Pb2+, Cd2+, and Fe3+ were 449.80, 122.05, and 779.88 mg/g, respectively. Higher Mn-OH levels and MnO2 regeneration were crucial in improving adsorption performance. Proton exchange and inner-circle complexation were the main pathways for Pb2+ and Cd2+ adsorption by in-situ formed ε-MnO2. A phase transformation occurred when a substantial amount of Fe3+ was adsorbed, leading to the gradual transformation to MnFe binary oxides. When applying in-situ formed ε-MnO2 technology for actual AMD treatment, 98.62 % of Mn in AMD was recovered within 24 h in the presence of ε-MnO2 for possible further reuse in industries, with a final recovery of 0.76 kg/m3. Further, this technique removed other heavy metals and reduced the sludge volume by 20.99 % when used as a pre-treatment step for neutralization. These results demonstrated the broad potential of this treatment technology.
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Affiliation(s)
- Yaozhong Wang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yuebei Yang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yuting Zhou
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Feng Jiang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yanjie Zheng
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Wei Tan
- Department of Landscape Architecture, Faculty of Architecture, South China University of Technology, Guangzhou, 510640, China
| | - Xiaoyun Yi
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, China.
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, China
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10
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Zhou H, Lv L, Ye M, Baig SA, Luo Y, Chen J, Hu S, Zhang H, Wang J. Improvement strategy of citrate and biochar assisted nano-palladium/iron composite for effective dechlorination of 2,4-dichlorophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:34661-34674. [PMID: 38713350 DOI: 10.1007/s11356-024-33475-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/22/2024] [Indexed: 05/08/2024]
Abstract
Rapid passivation and aggregation of nanoscale zero-valent iron (nZVI) seriously limit its performance in the remediation of different contaminants from wastewater. To overcome such issues, in the present study, nano-palladium/iron (nPd/Fe) was simultaneously improved by biochar (BC) prepared from discarded peanut shells and green complexing agent sodium citrate (SC). For this purpose, a composite (SC-nPd/Fe@BC) was successfully synthesized to remove 2,4-dichlorophenol (2,4-DCP) from wastewater. In the SC-nPd/Fe@BC, BC acts as a carrier with dispersed nPd/Fe particles to effectively prevent its agglomeration, and increased the specific surface area of the composite, thereby improving the reactivity and stability of nPd/Fe. Characterization results demonstrated that the SC-nPd/Fe@BC composites were well dispersed, and the agglomeration was weakened. The formation of the passivation layer on the surface of the particles was inhibited, and the mechanism of SC and BC improving the reactivity of nPd/Fe was clarified. Different factors were found to influence the reductive dichlorination of 2,4-DCP, including Pd loading, Fe:C, SC addition, temperature, initial pH, and initial pollutant concentration. The dechlorination results revealed that the synergistic effect of the BC and SC made the removal efficiency and dechlorination rate of 2,4-DCP by SC-nPd/Fe@BC reached to 96.0 and 95.6%, respectively, which was better than that of nPd/Fe (removal: 46.2%, dechlorination: 45.3%). Kinetic studies explained that the dechlorination reaction of 2,4-DCP and the data were better represented by the pseudo-first-order kinetic model. The reaction rate constants followed the order of SC-nPd/Fe@BC (0.0264 min-1) > nPd/Fe@BC (0.0089 min-1) > SC-nPd/Fe (0.0081 min-1) > nPd/Fe (0.0043 min-1). Thus, SC-nPd/Fe@BC was capable of efficiently reducing 2,4-DCP and the dechlorination efficiency of BC and SC synergistically assisted composite on 2,4-DCP was much better than that of SC-nPd/Fe, nPd/Fe@BC and nPd/Fe. Findings suggested that SC-nPd/Fe@BC can be promising for efficient treatment of chlorinated pollutants.
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Affiliation(s)
- Hongyi Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Longfei Lv
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Mengyao Ye
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shams Ali Baig
- Department of Environmental Sciences, Abdul Wali Khan University Mardan (AWKUM), Mardan, 23200, Pakistan
| | - Yangchun Luo
- Shaoxing Research Institute, Zhejiang University of Technology, Shaoxing, 312000, Zhejiang, China
| | - Jinhai Chen
- Shaoxing Research Institute, Zhejiang University of Technology, Shaoxing, 312000, Zhejiang, China
| | - Shufen Hu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hao Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Junliang Wang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China.
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11
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Zeng W, Lu Y, Zhou J, Zhang J, Duan Y, Dong C, Wu W. Simultaneous removal of Cd(II) and As(V) by ferrihydrite-biochar composite: Enhanced effects of As(V) on Cd(II) adsorption. J Environ Sci (China) 2024; 139:267-280. [PMID: 38105054 DOI: 10.1016/j.jes.2023.04.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 12/19/2023]
Abstract
The coexistence of cadmium (Cd(II)) and arsenate (As(V)) pollution has long been an environmental problem. Biochar, a porous carbonaceous material with tunable functionality, has been used for the remediation of contaminated soils. However, it is still challenging for the dynamic quantification and mechanistic understanding of the simultaneous sequestration of multi-metals in biochar-engineered environment, especially in the presence of anions. In this study, ferrihydrite was coprecipitated with biochar to investigate how ferrihydrite-biochar composite affects the fate of heavy metals, especially in the coexistence of Cd(II) and As(V). In the solution system containing both Cd(II) and As(V), the maximum adsorption capacities of ferrihydrite-biochar composite for Cd(II) and As(V) reached 82.03 µmol/g and 531.53 µmol/g, respectively, much higher than those of the pure biochar (26.90 µmol/g for Cd(II), and 40.24 µmol/g for As(V)) and ferrihydrite (42.26 µmol/g for Cd(II), and 248.25 µmol/g for As(V)). Cd(II) adsorption increased in the presence of As(V), possibly due to the changes in composite surface charge in the presence of As(V), and the increased dispersion of ferrihydrite by biochar. Further microscopic and mechanistic results showed that Cd(II) complexed with both biochar and ferrihydrite, while As(V) was mainly complexed by ferrihydrite in the Cd(II) and As(V) coexistence system. Ferrihydrite posed vital importance for the co-adsorption of Cd(II) and As(V). The different distribution patterns revealed by this study help to a deeper understanding of the behaviors of cations and anions in the natural environment.
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Affiliation(s)
- Wenjun Zeng
- College of Sciences, Nanjing Agricultural University, Nanjing 210095, China; South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; Guangdong Engineering & Technology Research Center for System Control of Livestock and Poultry breeding Pollution, Guangzhou 510655, China
| | - Yang Lu
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; Guangdong Engineering & Technology Research Center for System Control of Livestock and Poultry breeding Pollution, Guangzhou 510655, China
| | - Jingyan Zhou
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; Guangdong Engineering & Technology Research Center for System Control of Livestock and Poultry breeding Pollution, Guangzhou 510655, China
| | - Jie Zhang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; Guangdong Engineering & Technology Research Center for System Control of Livestock and Poultry breeding Pollution, Guangzhou 510655, China
| | - Yuanxiao Duan
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; Guangdong Engineering & Technology Research Center for System Control of Livestock and Poultry breeding Pollution, Guangzhou 510655, China
| | - Changxun Dong
- College of Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Wencheng Wu
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; Guangdong Engineering & Technology Research Center for System Control of Livestock and Poultry breeding Pollution, Guangzhou 510655, China.
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12
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Hu H, Zhao L, Yao L, He M, Lv Y, Li R. Adsorption removal of cationic dyes from wastewater using the corn straw modified with diethylenetriaminepentacetic acid ligand. J Chromatogr A 2024; 1720:464781. [PMID: 38471297 DOI: 10.1016/j.chroma.2024.464781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024]
Abstract
Taking the thiazide cationic dye methylene blue (MB), triphenylmethane cationic dye crystal violet (CV), monoazo cationic dye cationic red 46 (R-46), and polycarboxycyanine cationic dye cationic rosé FG (P-FG) as the research objects, the adsorption behaviors of a self-made corn straw modified adsorbent HQ-DTPA-I for the dyes were investigated in depth. Under optimized conditions, HQ-DTPA-I can quickly adsorb most dyes within 3 min and reach equilibrium adsorption in 15-20 min. The removal rates of HQ-DTPA-I to MB, CV, R-46 and AP-FG can reach 95.28 %, 99.78 %, 99.28 % and 98.53 %, respectively. It also has good anti-interference ability for common ions present in most actual dye wastewater. For six consecutive adsorption-desorption cycles, the adsorption performance of HQ-DTPA-I can still reach 80.17 %, 81.61 %, 90.77 % and 83.48 % of the initial adsorption capacity, indicating good recovery performance. Based on Gaussian density functional theory to calculate its surface potential energy, it is found that the adsorption mechanism of HQ-DTPA-I for the cationic dyes is mainly due to the electrostatic interaction between the carboxyl groups in ligand DTPA and amino groups in dye molecules.
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Affiliation(s)
- Hongbin Hu
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi Province 710069, PR China
| | - Lang Zhao
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi Province 710069, PR China
| | - Lu Yao
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi Province 710069, PR China
| | - Min He
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi Province 710069, PR China
| | - Yuwei Lv
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi Province 710069, PR China
| | - Rong Li
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi Province 710069, PR China.
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13
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Zhang Y, Fu P, Ni W, Zhang S, Li S, Deng W, Hu W, Li J, Pei F, Du L, Wang Y. A review of solid wastes-based stabilizers for remediating heavy metals co-contaminated soil: Applications and challenges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170667. [PMID: 38331289 DOI: 10.1016/j.scitotenv.2024.170667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/27/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
The remediation of heavy metals/metalloids (HMs) co-contaminated soil by solid wastes-based stabilizers (SWBS) has received major concern recently. Based on the literature reported in the latest years (2010-2023), this review systematically summarizes the different types of solid wastes (e.g., steel slag, coal fly ash, red mud, and sewage sludge, etc.) employed to stabilize HMs contaminated soil, and presents results from laboratory and field experiments. Firstly, the suitable solid wastes for soil remediation are reviewed, and the pros and cons are presented. Thereafter, the technical feasibility and economic benefit are evaluated for field application. Moreover, evaluation methods for remediation of different types of HMs-contaminated soil and the effects of SWBS on soil properties are summarized. Finally, due to the large specific surface, porous structure, and high reactivity, the SWBS can effectively stabilize HMs via adsorption, complexation, co/precipitation, ion exchange, electrostatic interaction, redox, and hydration process. Importantly, the environmental implications and long-term effectiveness associated with the utilization of solid wastes are highlighted, which are challenges for practical implementation of soil stabilization using SWBS, because the aging of soil/solid wastes has not been thoroughly investigated. Future attention should focus on modifying the SWBS and establishing an integrated long-term stability evaluation method.
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Affiliation(s)
- Yuliang Zhang
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Pingfeng Fu
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China; Key Laboratory of the Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China.
| | - Wen Ni
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China; Key Laboratory of the Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
| | - Siqi Zhang
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China; Key Laboratory of the Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
| | - Sheng Li
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Wei Deng
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Wentao Hu
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China; Key Laboratory of the Ministry of Education for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China
| | - Jia Li
- School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Fuyun Pei
- CECEP Tech and Ecology & Environment Co., Ltd., Shenzhen 518017, China
| | - Linfeng Du
- CECEP Tech and Ecology & Environment Co., Ltd., Shenzhen 518017, China
| | - Yueling Wang
- CECEP Tech and Ecology & Environment Co., Ltd., Shenzhen 518017, China
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14
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Wang J, Chen M, Han Y, Sun C, Zhang Y, Zang S, Qi L. Fast and efficient As(III) removal from water by bifunctional nZVI@NBC. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:160. [PMID: 38592564 DOI: 10.1007/s10653-024-01939-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 02/23/2024] [Indexed: 04/10/2024]
Abstract
As a notable toxic substance, metalloid arsenic (As) widely exists in water body and drinking As-contaminated water for an extended period of time can result in serious health concerns. Here, the performance of nanoscale zero-valent iron (nZVI) modified N-doped biochar (NBC) composites (nZVI@NBC) activated peroxydisulfate (PDS) for As(III) removal was investigated. The removal efficiencies of As(III) with initial concentration ranging from 50 to 1000 μg/L were above 99% (the residual total arsenic below 10 μg/L, satisfying the contaminant limit for arsenic in drinking water) within 10 min by nZVI@NBC (0.2 g/L)/PDS (100 μM). As(III) removal efficiency influenced by reaction time, PDS dosage, initial concentration, pH, co-existing ions, and natural organic matter in nZVI@NBC/PDS system were investigated. The nZVI@NBC composite is magnetic and could be conveniently collected from aqueous solutions. In practical applications, nZVI@NBC/PDS has more than 99% As(III) removal efficiency in various water bodies (such as deionized water, piped water, river water, and lake water) under optimized operation parameters. Radical quenching and EPR analysis revealed that SO4·- and ·OH play important roles in nZVI@NBC/PDS system, and the possible reaction mechanism was further proposed. These results suggest that nZVI@NBC activated peroxydisulfate may be an efficient and fast approach for the removal of water contaminated with As(III).
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Affiliation(s)
- Jiuwan Wang
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Mengfan Chen
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Yulian Han
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Congting Sun
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China.
| | - Ying Zhang
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Shuyan Zang
- Shenyang University of Chemical Technology, Shenyang, 110142, People's Republic of China.
| | - Lin Qi
- Shenyang Municipal Bureau of Ecology and Environment, Shenyang, 110036, People's Republic of China
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15
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Zhao J, Qin Y, Liu Y, Shi Y, Lin Q, Cai M, Jia Z, Yu C, Shang A, Fei Y, Zhang J. Cobalt/Iron Bimetallic Biochar Composites for Lead(II) Adsorption: Mechanism and Remediation Performance. Molecules 2024; 29:1595. [PMID: 38611873 PMCID: PMC11013323 DOI: 10.3390/molecules29071595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
The performance of nano-zero-valent iron for heavy metal remediation can be enhanced via incorporation into bimetallic carbon composites. However, few economical and green approaches are available for preparing bimetallic composite materials. In this study, novel Co/Fe bimetallic biochar composites (BC@Co/Fe-X, where X = 5 or 10 represents the CoCl2 concentration of 0.05 or 0.1 mol L-1) were prepared for the adsorption of Pb2+. The effect of the concentration of cross-linked metal ions on Pb2+ adsorption was investigated, with the composite prepared using 0.05 mol L-1 Co2+ (BC@Co/Fe-5) exhibiting the highest adsorption performance. Various factors, including the adsorption period, Pb2+ concentration, and pH, affected the adsorption of Pb2+ by BC@Co/Fe-5. Further characterisation of BC@Co/Fe-5 before and after Pb2+ adsorption using methods such as X-ray diffraction and X-ray photoelectron spectroscopy suggested that the Pb2+ adsorption mechanism involved (i) Pb2+ reduction to Pb0 by Co/Fe, (ii) Co/Fe corrosion to generate Fe2+ and fix Pb2+ in the form of PbO, and (iii) Pb2+ adsorption by Co/Fe biochar. Notably, BC@Co/Fe-5 exhibited excellent remediation performance in simulated Pb2+-contaminated water and soil with good recyclability.
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Affiliation(s)
- Jingyu Zhao
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Yuhong Qin
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Yue Liu
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Yunlong Shi
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Qiang Lin
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Miao Cai
- Hainan Pujin Environmental Technology Co., Ltd., Haikou 570125, China
| | - Zhenya Jia
- Hainan Huantai Environmental Resources Co., Ltd., Haikou 571158, China
| | - Changjiang Yu
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Anqi Shang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Yuxiao Fei
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
| | - Jiayi Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Key Laboratory of Natural Polymer Function Material of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, No. 99 Longkunnan Road, Haikou 571158, China
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16
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Shan A, Idrees A, Zaman WQ, Mohsin A, Abbas Z, Stadler FJ, Lyu S. Synthesis of CaCO 3 supported nano zero-valent iron-nickel nanocomposite (nZVI-Ni@CaCO 3) and its application for trichloroethylene removal in persulfate activated system. ENVIRONMENTAL RESEARCH 2024; 245:118050. [PMID: 38163542 DOI: 10.1016/j.envres.2023.118050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/09/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Nano zero-valent (nZVI) based composite have been widely utilized in environmental remediation. However, the rapid agglomeration and quick deactivation of nZVI limited its application on large scale. In this work, CaCO3 supported nZVI-Ni catalyst, namely nZVI-Ni@CaCO3 was prepared and used for the efficient removal of trichloroethylene (TCE) in PS oxidation process. The successful disbursement of nZVI-Ni on CaCO3 support material not only increased the surface area of nZVI-Ni@CaCO3 (69.45 m2/g) with respect to CaCO3 (5.92 m2/g) and bare nZVI (13.29 m2/g) but also improved the catalytic activity. XRD, XPS and FTIR analysis confirmed the successful formation of nZVI-Ni@CaCO3 nanoparticles. The nZVI-Ni@CaCO3 nanoparticles combined with PS had achieved complete removal of TCE (99.8%) with dosage of 36 mg/L and 1.34 mM respectively. These results showed that the use of CaCO3 as support material for nZVI-Ni could have significant influence on contaminant removal process. Scavenging and EPR tests validated the existence of SO4•-, OH• and O2•- radicals in PS/nZVI-Ni@CaCO3 system and highlighted the dominant role of SO4•- radicals in TCE removal process. HCO3- ions and humic acid have shown adverse effect on TCE removal due to radical scavenging and buffering effect. Owing to improved catalytic activity and easy preparation, the nZVI-Ni@CaCO3 nanoparticles could be served as an alternative strategy for environmental remediation.
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Affiliation(s)
- Ali Shan
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen ,518060, China
| | - Ayesha Idrees
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, China
| | - Waqas Qamar Zaman
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences & Technology, Islamabad, 44000, Pakistan
| | - Ali Mohsin
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zain Abbas
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
| | - Florian J Stadler
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen, 518055, China.
| | - Shuguang Lyu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China
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17
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Abukhadra MR, Nasser N, El-Sherbeeny AM, Al Zoubi W. Enhanced Retention of Cd(II) by Exfoliated Bentonite and Its Methoxy Form: Steric and Energetic Studies. ACS OMEGA 2024; 9:11534-11550. [PMID: 38496923 PMCID: PMC10938405 DOI: 10.1021/acsomega.3c08592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/30/2024] [Accepted: 02/13/2024] [Indexed: 03/19/2024]
Abstract
Synergistic studies were conducted to evaluate the retention potentiality of exfoliating bentonite (EXBEN) as well as its methanol hybridization derivative (Mth/EXBEN) toward Cd(II) ions to be able to verify the effects of the transformation processes. The adsorption characteristics were established by considering the steric and energetic aspects of the implemented advanced equilibrium simulation, specifically the monolayer model with a single energy level. Throughout the full saturation states, the adsorption characteristics of Cd(II) increased substantially to 363.7 mg/g following the methanol hybridized treatment in comparison to EXBEN (293.2 mg/g) as well as raw bentonite (BEN) (187.3 mg/g). The steric analysis indicated a significant rise in the levels of the active sites following the exfoliation procedure [retention site density (Nm) = 162.96 mg/g] and the chemical modification with methanol [retention site density (Nm) = 157.1 mg/g]. These findings clarify the improvement in the potential of Mth/EXBEN to eliminate Cd(II). Furthermore, each open site of Mth/EXBEN has the capacity to bind approximately three ions of Cd(II) in a vertically aligned manner. The energetic investigations, encompassing the Gaussian energy (less than 8 kJ/mol) plus the adsorption energy (less than 40 kJ/mol), provide evidence of the physical sequestration of Cd(II). This process may involve the collaborative impacts of dipole binding forces (ranging from 2 to 29 kJ/mol) and hydrogen binding (less than 30 kJ/mol). The measurable thermodynamic functions, particularly entropy, internal energy, and free enthalpy, corroborate the exothermic and spontaneous nature of Cd(II) retention by Mth/EXBEN, as opposed to those by EXBEN and BE.
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Affiliation(s)
- Mostafa R. Abukhadra
- Geology
Department, Faculty of Science, Beni-Suef
University, Beni Suef
City 62511, Egypt
- Materials
Technologies and Their Applications Lab, Faculty of Science, Beni-Suef University, Beni Suef City 62511, Egypt
| | - Nourhan Nasser
- Geology
Department, Faculty of Science, Beni-Suef
University, Beni Suef
City 62511, Egypt
- Materials
Technologies and Their Applications Lab, Faculty of Science, Beni-Suef University, Beni Suef City 62511, Egypt
| | - Ahmed M. El-Sherbeeny
- Industrial
Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Wail Al Zoubi
- Materials
Electrochemistry Laboratory, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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18
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Cai Y, Jiang J, Zhao X, Zhou D, Gu X. How Fe-bearing materials affect soil arsenic bioavailability to rice: A meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169378. [PMID: 38101648 DOI: 10.1016/j.scitotenv.2023.169378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/10/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023]
Abstract
Arsenic (As) contamination is widespread in soil and poses a threat to agricultural products and human health due to its high susceptibility to absorption by rice. Fe-bearing materials (Fe-Mat) display significant potential for reducing As bioavailability in soil and bioaccumulation in rice. However, the remediation effect of various Fe-Mat is often inconsistent, and the response to diverse environmental factors is ambiguous. Here, we conducted a meta-analysis to quantitatively assess the effects of As in soils, rice roots, and grains based on 673, 321, and 305 individual observations from 67 peer-reviewed articles, respectively. On average, Fe-Mat reduced As bioavailability in soils, rice roots, and grains by 28.74 %, 33.48 %, and 44.61 %, respectively. According to the analysis of influencing factors, the remediation efficiency of Fe-Mat on As-contaminated soil was significantly enhanced with increasing Fe content in the material, in which the industry byproduct was the most effective in soils (-42.31 %) and rice roots (-44.57 %), while Fe-biochar was superior in rice grains (-54.62 %). The efficiency of Fe-Mat in minimizing soil As mobility was negatively correlated with soil Fe content, CEC, and pH. In addition, applying Fe-Mat in alkaline soils with higher silt, lower clay and available P was more effective in reducing As in rice grains. A higher efficiency of applying Fe-Mat under continuous flooding conditions (27.39 %) compared with alternate wetting and drying conditions (23.66 %) was also identified. Our results offer an important reference for the development of remediation strategies and methods for various As-contaminated paddy soils.
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Affiliation(s)
- Yijun Cai
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China
| | - Jinlin Jiang
- Key Laboratory of Soil Environmental Management, Nanjing Institute of Environmental Sciences, Nanjing 210042, PR China
| | - Xiaopeng Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China
| | - Xueyuan Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China.
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Wang L, Zhang T, Cai T, Xiang Q, Liu X, Zhu D. The pH-specific response of soil resistome to triclocarban and arsenic co-contamination. JOURNAL OF HAZARDOUS MATERIALS 2024; 464:132952. [PMID: 37952336 DOI: 10.1016/j.jhazmat.2023.132952] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/23/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Heavy metals as well as disinfectants affect the spread of antibiotic resistance genes (ARGs) in soil microbes, however, their cumulative impacts on the proliferation of ARGs are not well studied. In addition, both the chemical stability/availability and ARG profiles are affected by the soil pH, but it has never been considered in the systematic evaluation of soil resistome. In the present study, a microcosm experiment was conducted to study the combined effects of arsenic and triclocarban on the resistome in soil samples with variable pH (pH 4-7). The simultaneous additions of arsenic and triclocarban increase the ARG abundance at pH > 6, because of the intensive co-selective pressures triggered by the increase in concentrations of available arsenic and triclocarban. The occurrence of multidrug ARGs increases with the addition of arsenic and triclocarban, due to the preferred selection of their functional flexibility. The presence of arsenic and triclocarban is strongly related to the spread of MGEs affecting the soil resistome. Furthermore, pH alters the patterns of microbial inhabitants, increasing the relative abundance of Bacteroidota and Proteobacteria and contributing to the prevalence of tetracycline and sulfonamide ARGs at neutral pH. These findings have insight that the effects of arsenic and triclocarban co-contamination on the soil antibiotic resistome is pH dependent.
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Affiliation(s)
- Lu Wang
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Tianlun Zhang
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Tiangui Cai
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Qian Xiang
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Xiaohui Liu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, PR China; Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266003, PR China.
| | - Dong Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China.
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20
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Islam MA, Nazal MK, Angove MJ, Morton DW, Hoque KA, Reaz AH, Islam MT, Karim SMA, Chowdhury AN. Emerging iron-based mesoporous materials for adsorptive removal of pollutants: Mechanism, optimization, challenges, and future perspective. CHEMOSPHERE 2024; 349:140846. [PMID: 38043616 DOI: 10.1016/j.chemosphere.2023.140846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/03/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Iron-based materials (IBMs) have shown promise as adsorbents due to their unique physicochemical properties. This review provides an overview of the different types of IBMs, their synthesis methods, and their properties. Results found in the adsorption of emerging contaminants to a wide range of IBMs are discussed. The IBMs used were evaluated in terms of their maximum uptake capacity, with special consideration given to environmental conditions such as contact time, solution pH, initial pollutant concentration, etc. The adsorption mechanisms of pollutants are discussed taking into account the results of kinetic, isotherm, thermodynamic studies, surface complexation modelling (SCM), and available spectroscopic data. A current overview of molecular modeling and simulation studies related to density functional theory (DFT), surface response methodology (RSM), and artificial neural network (ANN) is presented. In addition, the reusability and suitability of IBMs in real wastewater treatment is shown. The review concludes with the strengths and weaknesses of current research and suggests ideas for future research that will improve our ability to remove contaminants from real wastewater streams.
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Affiliation(s)
- Md Aminul Islam
- Applied Research Center for Environment and Marine Studies (ARCEMS), Research Institute, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, 31261, Saudi Arabia; Division of Chemistry, Department of Arts and Sciences, Faculty of Engineering, Ahsanullah University of Science and Technology (AUST), 14 1 & 142, Love Road, Tejgaon Industrial Area, Dhaka, 1208, Bangladesh.
| | - Mazen K Nazal
- Applied Research Center for Environment and Marine Studies (ARCEMS), Research Institute, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Michael J Angove
- Colloid and Environmental Chemistry (CEC) Research Laboratory, Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Sciences (LIMS), La Trobe University, Bendigo, Victoria, Australia.
| | - David W Morton
- Colloid and Environmental Chemistry (CEC) Research Laboratory, Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Sciences (LIMS), La Trobe University, Bendigo, Victoria, Australia
| | - Khondaker Afrina Hoque
- Department of Chemistry, Faculty of Science, Comilla University, Cumilla, 3506, Bangladesh; Department of Chemistry, Faculty of Science, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
| | - Akter Hossain Reaz
- Department of Chemistry, Faculty of Science, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh
| | - Mohammad Tajul Islam
- Department of Textile Engineering, Faculty of Engineering, Ahsanullah University of Science and Technology (AUST), 14 1 & 142, Love Road, Tejgaon Industrial Area, Dhaka, 1208, Bangladesh
| | - S M Abdul Karim
- Division of Chemistry, Department of Arts and Sciences, Faculty of Engineering, Ahsanullah University of Science and Technology (AUST), 14 1 & 142, Love Road, Tejgaon Industrial Area, Dhaka, 1208, Bangladesh
| | - Al-Nakib Chowdhury
- Department of Chemistry, Faculty of Science, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh.
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Zhang X, Wang Y, Li T, Wang H. Tannic acid modified microscale zero valent iron (TA-mZVI) with enhanced anti-passivation capability for Cr(VI) removal. CHEMOSPHERE 2024; 350:141034. [PMID: 38147926 DOI: 10.1016/j.chemosphere.2023.141034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/27/2023] [Accepted: 12/23/2023] [Indexed: 12/28/2023]
Abstract
The removal of Cr(VI) from aqueous solutions using microscale zerovalent iron (mZVI) shows promising potential. However, the surface passivation of mZVI particles hinders its widespread application. In this study, we prepared tannic acid (TA) modified mZVI composite (TA-mZVI) by a simple sonication method. The introduction of TA allowing TA-mZVI composite to adsorb Cr(VI) rapidly under electrostatic forces attraction, guarantying TA-mZVI exhibited remarkable Cr(VI) removal capacity with a maximum adsorption capacity of 106.1 mg⋅g-1. At an initial pH of 3, it achieved a rapid removal efficiency of 96.2% within just 5 min, which was 7.7 times higher than that of mZVI. Various characterizations, including XPS and CV analysis, indicated that the formation of TA-Fe complexes accelerates electron transfer. In addition, TA endows functional groups to TA-mZVI, raising the dispersion and stability and serves as a protective layer hindering passivation. Further mechanistic analysis revealed that Cr(VI) removal by TA-mZVI followed an adsorption-reduction-precipitation mechanism, with TA mitigating the surface passivation of mZVI and facilitating the reduction of most Cr(VI) to Cr(III). Batch cyclic experiments revealed that TA-mZVI exhibited satisfactory performance, maintaining over 85% Cr(VI) removal even after five cycles and minimally affected by various coexisting ions. With notable advantages in cost-effectiveness, ease-synthesis and recovery, this work provides a great promise for developing efficient reactive adsorbent for addressing Cr(VI) contamination in aqueous solutions.
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Affiliation(s)
- Xueyi Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yue Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Tielong Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Haitao Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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22
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Li K, Xu W, Song H, Bi F, Li Y, Jiang Z, Tao Y, Qu J, Zhang Y. Superior reduction and immobilization of Cr(VI) in soil utilizing sulfide nanoscale zero-valent iron supported by phosphoric acid-modified biochar: Efficiency and mechanism investigation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168133. [PMID: 37890623 DOI: 10.1016/j.scitotenv.2023.168133] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 10/29/2023]
Abstract
A novel strategy was proposed to remediate Cr(VI)-contaminated soil via phosphoric acid-modified biochar supported sulfide nanoscale zero-valent iron (SnZVI@PBC). Results of characterizations revealed that FeSX shell existed in outer layer of nZVI to prevent its oxidation after sulfidation modification, and SnZVI was effectively dispersed owing to the support of PBC, accelerating the electron transport for Cr(VI) reduction. The SnZVI@PBC presented pH-dependence and fast capture for Cr(VI) with outstanding binding amount of 335.55 mg/g. More importantly, the Cr(VI) content declined from 1300.75 to 223.30 mg/kg with conversion into stable Cr(III) in soil after 42 d of remediation with 2.0 % SnZVI@PBC under 60 % moisture content. Furthermore, leaching experiments showed that SnZVI@PBC could effectively immobilize Cr(VI), decreasing its migration and harmful risks to plants and human. Particularly, the fractions of exchangeable and carbonate-bound Cr decreased by 96.77 % and 83.60 %, which transformed to relatively stable fractions. Interestingly, the presence of humic acid, and the freezing-thawing/wetting-drying process promoted the immobilization performance of SnZVI@PBC for Cr(VI). SnZVI@PBC could alleviate the migration and poisonousness of Cr(VI) in soil primarily via reduction, co-precipitation, pore filling, and electrostatic attraction. Overall, SnZVI@PBC could be considered as a feasible amendment with superior reducing capacity and immobilization performance for Cr(VI)-contaminated soil.
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Affiliation(s)
- Kaige Li
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Weijie Xu
- State Key Laboratory of Subtropical Silviculture, Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Lin'an 311300, China
| | - Haijiao Song
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Fuxuan Bi
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yuhui Li
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Zhao Jiang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yue Tao
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China; Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300350, China.
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
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23
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Shi Y, Wang X, Feng C, Chen W, Yang S. Adsorption Properties of Natural Zeolite Supported by Chitosan on Cd(II) in Micropolluted Irrigation Water. ACS OMEGA 2024; 9:573-584. [PMID: 38222656 PMCID: PMC10785632 DOI: 10.1021/acsomega.3c06041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/16/2024]
Abstract
This study utilized a 1% chitosan solution (dissolved in 2% acetic acid), with a chitosan-to-zeolite mass ratio of 0.005, to successfully prepare chitosan-loaded natural zeolite. The performance of chitosan-modified natural zeolite in the removal of low-concentration cadmium ions in the presence of micropollutants was investigated. The adsorbent was characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR), and scanning electron microscopy (SEM)/energy-dispersive spectroscopy (EDS) techniques. The impact of modified adsorbent dosage, pH value, contact time, temperature, and initial concentration on adsorption performance was discussed. Additionally, the adsorption kinetics, isotherms, and thermodynamics of cadmium on chitosan-modified zeolites were analyzed. The results indicated that the modified zeolite exhibited a dispersed and porous structure with increased surface area, average pore size, and total pore volume. Under the conditions of 25 °C, pH 6, a dosage of 8 g/L, and a 60 min adsorption reaction time, chitosan-loaded natural zeolite (CNZ) achieved a removal efficiency of over 94.51% for a 100 μg/L cadmium solution (in a 100 mL volume). The adsorption process followed the Langmuir model, suggesting monolayer adsorption. The adsorption kinetics followed a pseudo-second-order equation, indicating an exothermic process with an increase in entropy. Chitosan-loaded natural zeolite demonstrated improved adsorption capacity and effectively removed cadmium from water contaminated with micropollutants.
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Affiliation(s)
- Yan Shi
- School
of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
- Collaborative
Innovation Center for Effificient Utilization of Water Resources, Zhengzhou 450046, China
| | - Xin Wang
- School
of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
| | - Changping Feng
- School
of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
| | - Weiwei Chen
- School
of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
| | - Shipeng Yang
- School
of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
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24
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You XY, Yin WM, Wang Y, Wang C, Zheng WX, Guo YR, Li S, Pan QJ. Enrichment and immobilization of heavy metal ions from wastewater by nanocellulose/carbon dots-derived composite. Int J Biol Macromol 2024; 255:128274. [PMID: 37989432 DOI: 10.1016/j.ijbiomac.2023.128274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/05/2023] [Accepted: 11/17/2023] [Indexed: 11/23/2023]
Abstract
Heavy metal ions (HMIs) have been widely applied in various industries because of their excellent physicochemical properties. However, their discharging without appropriate treatment brought about serious pollution problems. So it is desirable but challenging to rapidly and completely clean up these toxic pollutants from water, especially utilizing environmentally friendly and naturally rich biomass materials. In this work, we prepared nanocellulose/carbon dots/magnesium hydroxide (CCMg) ternary composite using cotton via a simple hydrothermal method. The removal mechanism towards Cd2+ and Cu2+ was investigated using a combination of experimental techniques and density functional theory calculations. CCMg shows a good ability to remove HMIs. It is realized that the interaction between each component of CCMg and cadmium nitrate is mainly of hydrogen/dative bonds. Cadmium nitrate is preferentially enriched by the Mg(OH)2 moiety, proved by calculated thermodynamics, interfacial interactions and charges. After transformation, the cadmium carbonate precipitate is fixed on the surface by nanocellulose (NC) via chemical coupling; and of interest is that copper ion precipitates in the form of basic sulfate. Due to its high adsorption effect and simple recovery operation, CCMg is having a wide range of application prospects as a water treatment agent.
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Affiliation(s)
- Xin-Yu You
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Wei-Ming Yin
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yan Wang
- Harbin Center for Disease Control and Prevention (Harbin Center for Health Examination), Harbin 150030, China
| | - Chen Wang
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Wen-Xiu Zheng
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
| | - Shujun Li
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China.
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Ren J, Zheng C, Yong Y, Lin Z, Zhu A, He C, Pan H. Effect and mechanism of kaolinite loading amorphous zero-valent iron to stabilize cadmium in soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166319. [PMID: 37586509 DOI: 10.1016/j.scitotenv.2023.166319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/12/2023] [Accepted: 08/13/2023] [Indexed: 08/18/2023]
Abstract
Amorphousness effectively improves the electron transfer rate of zero-valent iron. In this study, a novel kaolinite loading amorphous zero-valent iron composite (K-AZVI) was prepared and applied to the remediation of soils with cadmium (Cd) pollution concentrations of 20, 50, and 100 mg/kg respectively. The results showed that the application of K-AZVI increased the pH and cation exchange capacity (CEC) of soil, and decreased the dissolved organic carbon (DOC) and organic matter (OM) of soil, thus indirectly promoting the adsorption of Cd in the soil. After 28 days of stabilization, the stabilizing efficiency of K-AZVI on the water-soluble Cd content in soil reached 98.72 %. Under the amendment of 0.25 %-1.0 % (w/w), the available Cd content in 20-100 mg/kg contaminated soil decreased by 46.47 %-62.23 %, 24.10 %-41.52 %, and 16.09 %-30.51 % respectively compared with CK. More importantly, the addition of K-AZVI promoted the transformation of 33.18 %-48.42 % exchangeable fraction (EXC) to 10.09 %-20.14 % residual fraction (RES), which increased the abundance and diversity of soil bacterial communities. Comprehensive risk assessment showed that adding 1.0 % K-AZVI provided the best remediation on contaminated soil. In addition, the results of scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) of K-AZVI before and after the reaction showed that the stabilization mechanism of K-AZVI to Cd in soil is mainly the stable metal species (Cd(OH)2, CdO and CdFe2O4) formed by the direct complexation and coprecipitation of a large number of iron oxides formed by the rapid corrosion of amorphous zero-valent iron (AZVI). Overall, this work provides a promising approach to the remediation of Cd-contaminated soil using K-AZVI composites.
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Affiliation(s)
- Jieling Ren
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Chunli Zheng
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China; Shaanxi Qingling Chunchuang Environmental Protection Industry Technology Co., Ltd., Xi'an 710049, PR China.
| | - Yingying Yong
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Zishen Lin
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Aibin Zhu
- Institute of Robotics & Intelligent Systems, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Chi He
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Hua Pan
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, PR China.
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Hu X, Song M, Li S, Chu Y, Zhang WX, Deng Z. TEMPO oxidized cellulose nanocrystal (TOCNC) scaffolded nanoscale zero-valent iron (nZVI) for enhanced chromium removal. CHEMOSPHERE 2023; 343:140212. [PMID: 37742762 DOI: 10.1016/j.chemosphere.2023.140212] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/06/2023] [Accepted: 09/18/2023] [Indexed: 09/26/2023]
Abstract
The conventional carboxymethyl cellulose (CMC) stabilization hampered available active sites of adsorption and reduction, due to irregular shape of nanoscale zero-valent iron (nZVI) particles with augmented average size and passivated surface, leading to insufficient removal and poor resistance against complex environmental conditions. Herein, we presented (2,2,6,6-Tetramethylpiperidine-1-oxyl)-mediated (TEMPO-mediated) oxidation of cellulose nanocrystal (TOCNC) scaffolded nZVI (nZVI@TOCNC) with enhanced efficiency for chromium removal in comparison with CMC stabilized nZVI (nZVI@CMC). The anchoring of nZVI at the functional sites of TOCNC was initiated by liquid-phase chemical reduction method. The nZVI@TOCNC showed improved nZVI distribution with uniform particle size and thinner shell (∼1 nm). Characterizations using FT-IR, XPS and XRD demonstrated that bindings between TOCNC and nZVI were through hydrogen bonds, electrostatic attractions, coordination-covalent bonds and bidentate chelation. TOCNC with shorter branch-chain (-COC-) surrounding the nZVI could potentially form a porous and compact "mesh" to rigidly encapsulate nZVI, while CMC wrapped around nZVI in the way of traditional polymeric stabilizers. Thus, 0.5 g/L nZVI@TOCNC achieved 99.96% Cr (Ⅵ) removal efficiency (20 mg/L) at pH = 7 and the removal capacity were up to 55.86 mg/g. The nZVI@TOCNC consistently presented higher removal efficiency than nZVI@CMC under wide pH range (3-7). Cr (Ⅵ) was reduced to Cr (Ⅲ) by nZVI@TOCNC with deposition of CrxFe1-x (OH)3 and Cr2O3. The predominant mechanisms of removal probably consisted of electrostatic attractions, reduction, co-precipitation and surface complexation. The pseudo-second-order kinetic model well-fitted the sorption kinetic, indicating TOCNC scaffold stabilized nZVI for efficient reduction of Cr (Ⅵ) through multi-layer adsorption. As a template and delivery carrier, TOCNC shows promising potential to further improve the capability and practice of nZVI for in situ treatment of industrial waste water with heavy metal pollution.
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Affiliation(s)
- Xiaolei Hu
- State Key Laboratory for Pollution Control, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Mingyang Song
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri, 63130, United States
| | - Shiyan Li
- State Key Laboratory for Pollution Control, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Yu Chu
- State Key Laboratory for Pollution Control, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Wei-Xian Zhang
- State Key Laboratory for Pollution Control, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Zilong Deng
- State Key Laboratory for Pollution Control, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
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Nguyen NA, Nguyen DK, Dinh VP, Duong BN, Ton-That L, Hung NT, Ho TH. Effective adsorption of Pb(II) ion from aqueous solution onto ZSM-5 zeolite synthesized from Vietnamese bentonite clay. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1530. [PMID: 38006447 DOI: 10.1007/s10661-023-12153-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
ZSM-5 zeolite was successfully synthesized from bentonite clay sourced from Lam Dong Province, Vietnam, using the hydrothermal method at 170 °C for 18 h. The synthesized ZSM-5 (SiO2/Al2O3 ratio ~ 34) exhibited a single phase with high crystallinity (91.8%), and a clear and uniform shape. In a detailed examination of the synthesized material's Pb(II) adsorptive capacity, various factors were taken into account, including pH, interaction time, ionic strength, and the amount of adsorbent. Isotherms and kinetics were examined to elucidate the uptake behavior. Study results suggested that Pb(II) ion uptake by ZSM-5 was most appropriately described by the Sips isotherm and intraparticle diffusion kinetic models. The calculated maximum monolayer adsorption capacity according to the Langmuir isotherm model was 48.36 mg/g. Furthermore, the adsorption mechanisms of Pb(II) on ZSM-5 involving electrostatic interactions, ion exchange, and diffusion into pores were demonstrated using the analytical techniques before and after Pb(II) adsorption. These findings demonstrate that ZSM-5 synthesized from bentonite clay exhibits an excellent adsorption capacity for Pb(II), resulting in promising applications for treating drinking water or aqueous industrial waste containing Pb(II) ions.
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Affiliation(s)
- Ngoc-An Nguyen
- Institute of Interdisciplinary Social Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
| | - Duy-Khoi Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam.
- Nuclear Training Center, Vietnam Atomic Energy Institute, 140 Nguyen Tuan, Thanh Xuan, Ha Noi, 100000, Vietnam.
- Faculty of Natural Sciences, Duy Tan University, Da Nang City, 550000, Vietnam.
| | - Van-Phuc Dinh
- Institute of Interdisciplinary Social Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam.
| | - Bich-Ngoc Duong
- Institute of Interdisciplinary Social Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
- Nuclear Training Center, Vietnam Atomic Energy Institute, 140 Nguyen Tuan, Thanh Xuan, Ha Noi, 100000, Vietnam
| | - Loc Ton-That
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang City, 550000, Vietnam
| | - Nguyen Trong Hung
- Graduate Institute for Technology of Radioactive and Rare Elements, 48-Lang Ha, Dong Da, Ha Noi, 100000, Vietnam
| | - Thien-Hoang Ho
- Dong Nai University, 9 Le Quy Don Street, Dong Nai, 810000, Vietnam
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Li X, Li X, Song C, Yang X, Liu Y, Zhu J. Efficient degradation of tetrabromobisphenol A using peroxymonosulfate oxidation activated by a novel nano-CuFe 2O 4@coconut shell biochar catalyst. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 337:122488. [PMID: 37678734 DOI: 10.1016/j.envpol.2023.122488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/12/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023]
Abstract
In this study, a novel bimetallic complexation-curing nucleation-anaerobic calcination method was developed to synthesize a nano-CuFe2O4@coconut shell biochar (CuFe2O4@CSBC) catalyst to activate peroxymonosulfate for degradation of tetrabromobisphenol A (TBBPA). The reaction processes of the TBBPA on CuFe2O4@CSBC have been investigated using in situ characterization and metal leaching. The effects of initial reaction conditions and degradation mechanism were investigated. Greater than 99% degradation of TBBPA at 10 mg L-1 was achieved in 30 min under the condition of pH 11, a total organic carbon removal rate of up to 70.67% was achieved and the degradation efficiency was 90% after 5 cycles of CuFe2O4@CSBC use. The degradation was in a second-order reaction at a constant of 0.797 M-1 min-1 (R2 = 0.993). The degradation was attributed to the main active species (SO4·-≈·OH < 1O2), and the surface active site of CuFe2O4@CSBC was the key role. The degradation process involved three main degradation pathways. Path A: ·OH attacked the C-Br bonds (TBBPA→TriBBPA→DBBPA→MBBPA→BPA); Path B: Hydroxylation and decarboxylation; Path C: Dehydrocoupling of TBBPA. What's more, the practical application of the system was very positive, achieved >77% degradation in sewage and industrial wastewater.
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Affiliation(s)
- Xinxin Li
- Department of Environmental Science & Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xujing Li
- Beijing Risun Science and Technology Limited, Beijing, 100070, China
| | - Chuang Song
- Tieling Ecological Environment Bureau, Tieling, 112008, China
| | - Xiaojin Yang
- Department of Environmental Science & Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yanping Liu
- Department of Environmental Science & Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Jia Zhu
- Shenzhen Key Laboratory of Industrial Water Saving and Urban Sewage Resources, School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen, 518055, China
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Ma S, Ji J, Mou Y, Shen X, Xu S. Enhanced adsorption for trivalent antimony by nano-zero-valent iron-loaded biochar: performance, mechanism, and sustainability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:112536-112547. [PMID: 37831269 DOI: 10.1007/s11356-023-30299-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 10/02/2023] [Indexed: 10/14/2023]
Abstract
The discharge of tailing leachate and metallurgical wastewater has led to an increasing trend of water pollution. In this study, nZVI-modified low-temperature biochar was used to adsorb Sb(III) from water. The adsorption capacity and speed of nZVI-BC were better than those of BC, and the best adsorption effect was observed for 4nZVI-BC, with 93.60 mg·g-1 maximum adsorptive capacity, which was 208.61% higher than the original BC. The Langmuir and Temkin models were well fitted (R2 ≥ 0.99), and PSO was more in line with the 4nZVI-BC adsorption process, indicating that the adsorption was a monolayer physico-chemical adsorption. The combination of XRD, FTIR, and XPS characterization demonstrated that the adsorption mechanism predominantly included redox reactions, complexation, and electrostatic interactions. The thermodynamic results demonstrated that 4nZVI-BC adsorption on Sb(III) was a spontaneous endothermic process. Additionally, the order of the influence of interfering ions on 4nZVI-BC was CO32- > H2PO4- > SO42- > Cl-. After three repeated uses and adsorption-desorption, the adsorption ratio of Sb(III) by 4nZVI-BC was still as high as 90% and 65%, respectively. This study provides a theoretical reference for the exploration and development of Sb(III) removal technologies for aquatic environments.
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Affiliation(s)
- Siyi Ma
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, GuizhouGuiyang, 550025, China
- College of Resources and Environmental Engineering, Guizhou University, GuizhouGuiyang, 550025, China
| | - Jianghao Ji
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Yizhen Mou
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, GuizhouGuiyang, 550025, China
- College of Resources and Environmental Engineering, Guizhou University, GuizhouGuiyang, 550025, China
| | - Xueyi Shen
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, GuizhouGuiyang, 550025, China
- College of Resources and Environmental Engineering, Guizhou University, GuizhouGuiyang, 550025, China
| | - Siqin Xu
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, GuizhouGuiyang, 550025, China.
- College of Resources and Environmental Engineering, Guizhou University, GuizhouGuiyang, 550025, China.
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Ejaz M, Gul A, Ozturk M, Hafeez A, Turkyilmaz Unal B, Jan SU, Siddique MT. Nanotechnologies for environmental remediation and their ecotoxicological impacts. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1368. [PMID: 37875634 DOI: 10.1007/s10661-023-11661-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 08/01/2023] [Indexed: 10/26/2023]
Abstract
Environmental nanoremediation is an emerging technology that aims to rapidly and efficiently remove contaminants from the polluted sites using engineered nanomaterials (ENMs). Inorganic nanoparticles which are generally metallic, silica-based, carbon-based, or polymeric in nature serve to remediate through chemical reactions, filtration, or adsorption. Their greater surface area per unit mass and high reactivity enable them to treat groundwater, wastewater, oilfields, and toxic industrial contaminants. Despite the growing interest in nanotechnological solutions for bioremediation, the environmental and human hazard associated with their use is raising concerns globally. Nanoremediation techniques when compared to conventional remediation solutions show increased effectivity in terms of cost and time; however, the main challenge is the ability of ENMs to remove contaminants from different environmental mediums by safeguarding the ecosystem. ENMs improving the accretion of the pollutant and increasing their bioavailability should be rectified along with the vigilant management of their transfer to the upper levels of the food chain which subsequently causes biomagnification. The ecosystem-centered approach will help monitor the ecotoxicological impacts of nanoremediation considering the safety, sustainability, and proper disposal of ENMs. The environment and human health risk assessment of each novel engineered nanomaterial along with the regulation of life cycle assessment (LCA) tools of ENMs for nanoremediation can help investigate the possible environmental hazard. This review focuses on the currently available nanotechnological methods used for environmental remediation and their potential toxicological impacts on the ecosystem.
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Affiliation(s)
- Mahnoor Ejaz
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology, Islamabad, Pakistan
| | - Alvina Gul
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology, Islamabad, Pakistan.
| | - Munir Ozturk
- Botany Department and Centre for Environmental Studies, Ege University, Izmir, Türkiye.
| | - Ahmed Hafeez
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology, Islamabad, Pakistan
| | - Bengu Turkyilmaz Unal
- Biotechnology Department, Faculty of Arts and Science, Nigde Omer Halisdemir University, Nigde, Türkiye
| | - Sami Ullah Jan
- Department of Bioinformatics and Biosciences, Capital University of Science and Technology, Islamabad, 44000, Pakistan
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Ma M, Ha Z, Xu X, Lv C, Li C, Du D, Chi R. Simultaneous immobilization of multiple heavy metals in polluted soils amended with mechanical activation waste slag. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 894:164730. [PMID: 37308014 DOI: 10.1016/j.scitotenv.2023.164730] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/05/2023] [Accepted: 06/05/2023] [Indexed: 06/14/2023]
Abstract
Heavy metal soil contamination has become an increasingly serious problem in industrial development. However, industrial byproducts used for remediation are one aspect of green remediation that can contribute to sustainable practices in waste recycling. In this study, electrolytic manganese slags (EMS) were mechanically activated and modified into a passivator (M-EMS), and the heavy metal adsorption performance of M-EMS, heavy metal passivation ability in soil, dissolved organic matter (DOM) change and its effect on the microbial community structure of soil were investigated. The findings revealed that the maximum adsorption capacities of As(V), Cd2+, Cu2+ and Pb2+ were 76.32 mg/g, 301.41 mg/g, 306.83 mg/g and 826.81 mg/g, respectively, indicating that M-EMS demonstrated remarkable removal performance for different heavy metals. The Langmuir model fits Cd2+, Cu2+ and Pb2+ better than the Freundlich model, and monolayer adsorption is the main process. Surface complexation played a major role in the As(V) adsorption's on the surface of metal oxides in M-EMS. The passivation effect was ranked as Pb > Cr > As>Ni > Cd > Cu, with the highest passivation rate of 97.59 % for Pb, followed by Cr (94.76 %), then As (71.99 %), Ni (65.17 %), Cd (61.44 %), and the worst one was Cu (25.17 %). In conclusion, the passivator has the effect of passivation for each heavy metal. The addition of passivating agent can enhance the diversity of microorganisms. Then it can change the dominant flora and induce the passivation of heavy metals through microorganisms. XRD, FTIR, XPS and the microbial community structure of soil indicated that M-EMS can stabilize heavy metals in contaminated soils through four main mechanisms: ion exchange, electrostatic adsorption, complex precipitation and the microbially induced stabilization. The results of this study may provide new insights into the ecological remediation of multiple heavy-metal-contaminated soils and water bodies and research on the strategy of waste reduction and harmlessness by using EMS-based composites in combination with heavy metals in soil.
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Affiliation(s)
- Mengyu Ma
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China; College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China
| | - Zhihao Ha
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China
| | - Xiangqun Xu
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China
| | - Chenyang Lv
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China
| | - Changyi Li
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China
| | - Dongyun Du
- College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China; Engineering Research Center for Heavy Metal Pollution Control of Hubei Province, College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China.
| | - Ruan Chi
- Hubei Novel Reactor & Green Chemical Technology Key Laboratory, Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China
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32
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Cai H, Du X, Lin Z, Tao X, Zou M, Liu J, Zhang L, Dang Z, Lu G. Enhanced arsenic(III) sequestration via sulfidated zero-valent iron in aerobic conditions: Adsorption and oxidation coupling processes. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132190. [PMID: 37536156 DOI: 10.1016/j.jhazmat.2023.132190] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/23/2023] [Accepted: 07/28/2023] [Indexed: 08/05/2023]
Abstract
Sulfidated zero-valent iron (S-ZVI) has shown significant potential for the removal of arsenic(III). However, little attention has been paid to the mechanism of As(III) sequestration enhancement and how the phase transformation for S-ZVI strengthens this process in aerobic conditions. In this work, sulfidated ZVI was created by ball-milling (S-ZVIbm) and liquid-mixing (S-ZVIlm) of ZVI with elemental sulfur(S0) to investigate the performance and mechanisms of As(III) sequestration in air-saturated water. Sulfidation was found to significantly enhance the As(III) removal rate constant, which was 2.8 ∼ 6.7 times (S-ZVIbm) and 3.1 ∼ 17.1 times (S-ZVIlm) higher than that without sulfidation. FeS was identified as the predominant sulfur species in the S-ZVI samples using S K-edge XANES spectra. The enhanced electron transfer and ZVI corrosion after sulfidation were verified via electrochemical tests. XANES and Mössbauer spectra suggested that lepidocrocite(γ-FeOOH) was the predominant corrosion product generated on the ZVI surface with the presence of oxygen, and DFT calculations further confirmed the improved performance of γ-FeOOH for As(III) sequestration. Besides, As(III) oxidation occurred dominantly on the heterogeneous surface rather than in solution, and the As(III) sequestration pathway of adsorption followed by oxidation was proposed. This study provides new insight into the enhanced As(III) sequestration by S-ZVI in aerobic conditions.
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Affiliation(s)
- Haiming Cai
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Xiaodong Du
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Ziting Lin
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xueqin Tao
- College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Mengyao Zou
- College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Jingyong Liu
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Lijuan Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
| | - Guining Lu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, China.
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Abukhadra MR, Saad I, Al Othman SI, Alfassam HE, Allam AA. Insight into the synergetic, steric and energetic properties of zeolitization and cellulose fiber functionalization of diatomite during the adsorption of Cd(ii): advanced equilibrium studies. RSC Adv 2023; 13:23601-23618. [PMID: 37555098 PMCID: PMC10405048 DOI: 10.1039/d3ra03939k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/25/2023] [Indexed: 08/10/2023] Open
Abstract
The adsorption potentiality of zeolitized diatomite (ZD) frustules and their cellulose hybridized (C/ZD) product for Cd(ii) ions was assessed in synergetic studies to investigate the impact of the modification processes. The adsorption properties were illustrated based on the steric and energetic parameters of the applied advanced equilibrium modeling (monolayer model of one energy). The cellulose hybridization process increased the adsorption properties of Cd(ii) significantly to 229.4 mg g-1 as compared to ZD (180.8 mg g-1) and raw diatomite (DA) (127.8 mg g-1) during the saturation state. The steric investigation suggested a notable increase in the quantities of the active sites after the zeolitization (Nm = 62.37 mg g-1) and cellulose functionalization (Nm = 98.46 mg g-1), which illustrates enhancement in the Cd(ii) uptake capacity of C/ZD. Moreover, each active site of C/ZD can absorb about 4 ions of Cd(ii) ZD, which occur in a vertical orientation. The energetic studies, including Gaussian energy (<8 kJ mol-1) and retention energy (<8 kJ mol-1), demonstrate the physical uptake of Cd(ii), which might involve cooperating van der Waals forces (4-10 kJ mol-1), hydrophobic bonds (5 kJ mol-1), dipole forces (2-29 kJ mol-1), and hydrogen bonding (<30 kJ mol-1) in addition to zeolitic ion exchange mechanisms (0.6-25 kJ mol-1). The behaviors and values of entropy, internal energy, and free enthalpy as the assessed thermodynamic functions validate the exothermic and spontaneous properties of the Cd(ii) retention by ZD and the C/ZD composite.
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Affiliation(s)
- Mostafa R Abukhadra
- Geology Department, Faculty of Science, Beni-Suef University Beni Suef Egypt
- Materials Technologies and Their Applications Lab, Faculty of Science, Beni-Suef University Beni Suef Egypt
| | - Islam Saad
- Materials Technologies and Their Applications Lab, Faculty of Science, Beni-Suef University Beni Suef Egypt
- Physics Department, Faculty of Science, Beni-Suef University Beni-Suef 65211 Egypt
| | - Sarah I Al Othman
- Princess Nourah bint Abdulrahman University, College of Science, Biology Department Riyadh Saudi Arabia
| | - Haifa E Alfassam
- Princess Nourah bint Abdulrahman University, College of Science, Biology Department Riyadh Saudi Arabia
| | - Ahmed A Allam
- Zoology Department, Faculty of Science, Beni-Suef University Beni-Suef Egypt
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Oleńska E, Małek W, Wójcik M, Szopa S, Swiecicka I, Aleksandrowicz O, Włostowski T, Zawadzka W, Sillen WMA, Vangronsveld J, Cholakova I, Langill T, Thijs S. Bacteria associated with Zn-hyperaccumulators Arabidopsis halleri and Arabidopsis arenosa from Zn-Pb-Cd waste heaps in Poland as promising tools for bioremediation. Sci Rep 2023; 13:12606. [PMID: 37537323 PMCID: PMC10400580 DOI: 10.1038/s41598-023-39852-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/01/2023] [Indexed: 08/05/2023] Open
Abstract
To identify metal adapted bacteria equipped with traits positively influencing the growth of two hyperaccumulator plant species Arabidopsis arenosa and Arabidopsis halleri, we isolated bacteria inhabiting rhizosphere and vegetative tissues (roots, basal and stem leaves) of plants growing on two old Zn-Pb-Cd waste heaps in Bolesław and Bukowno (S. Poland), and characterized their potential plant growth promoting (PGP) traits as well as determined metal concentrations in rhizosphere and plant tissues. To determine taxonomic position of 144 bacterial isolates, 16S rDNA Sanger sequencing was used. A metabolic characterization of isolated strains was performed in vitro using PGP tests. A. arenosa and A. halleri accumulate high amounts of Zn in their tissues, especially in stem leaves. Among in total 22 identified bacterial taxa, the highest level of the taxonomical diversity (H' = 2.01) was revealed in A. halleri basal leaf endophytes originating from Bukowno waste heap area. The 96, 98, 99, and 98% of investigated strains showed tolerant to Cd, Zn, Pb and Cu, respectively. Generally, higher percentages of bacteria could synthesize auxins, siderophores, and acetoin as well as could solubilize phosphate. Nine of waste heap origin bacterial strains were tolerant to toxic metals, showed in vitro PGP traits and are potential candidates for bioremediation.
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Affiliation(s)
- Ewa Oleńska
- Faculty of Biology, University of Bialystok, 1J Ciołkowski, 15-245, Bialystok, Poland.
| | - Wanda Małek
- Faculty of Biology and Biotechnology, Institute of Biological Sciences, Maria Curie-Skłodowska University, 19 Akademicka, 20-033, Lublin, Poland
| | - Małgorzata Wójcik
- Faculty of Biology and Biotechnology, Institute of Biological Sciences, Maria Curie-Skłodowska University, 19 Akademicka, 20-033, Lublin, Poland
| | - Sebastian Szopa
- SHIM-POL A.M. Borzymowski, 5 Lubomirski, 05-080, Izabelin, Poland
| | - Izabela Swiecicka
- Faculty of Biology, University of Bialystok, 1J Ciołkowski, 15-245, Bialystok, Poland
- Laboratory of Applied Microbiology, University of Bialystok, 1J Ciołkowski, 15-245, Bialystok, Poland
| | | | - Tadeusz Włostowski
- Faculty of Biology, University of Bialystok, 1J Ciołkowski, 15-245, Bialystok, Poland
| | - Weronika Zawadzka
- Faculty of Biology, University of Bialystok, 1J Ciołkowski, 15-245, Bialystok, Poland
| | - Wouter M A Sillen
- Faculty of Environmental Biology, Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Jaco Vangronsveld
- Faculty of Biology and Biotechnology, Institute of Biological Sciences, Maria Curie-Skłodowska University, 19 Akademicka, 20-033, Lublin, Poland
- Faculty of Environmental Biology, Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Iva Cholakova
- Faculty of Environmental Biology, Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Tori Langill
- Faculty of Environmental Biology, Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium
| | - Sofie Thijs
- Faculty of Environmental Biology, Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium
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35
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Aborisade MA, Geng H, Oba BT, Kumar A, Ndudi EA, Battamo AY, Liu J, Chen D, Okimiji OP, Ojekunle OZ, Yang Y, Sun P, Zhao L. Remediation of soil polluted with Pb and Cd and alleviation of oxidative stress in Brassica rapa plant using nanoscale zerovalent iron supported with coconut-husk biochar. JOURNAL OF PLANT PHYSIOLOGY 2023; 287:154023. [PMID: 37343484 DOI: 10.1016/j.jplph.2023.154023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 05/28/2023] [Accepted: 06/06/2023] [Indexed: 06/23/2023]
Abstract
Accumulation of toxic elements by plants from polluted soil can induce the excessive formation of reactive oxygen species (ROS), thereby causing retarded plants' physiological attributes. Several researchers have remediated soil using various forms of zerovalent iron; however, their residual impacts on oxidative stress indicators and health risks in leafy vegetables have not yet been investigated. In this research, nanoscale zerovalent iron supported with coconut-husk biochar (nZVI-CHB) was synthesized through carbothermal reduction process using Fe2O3 and coconut-husk. The stabilization effects of varying concentrations of nZVI-CHB and CHB (250 and 500 mg/kg) on cadmium (Cd) and lead (Pb) in soil were analyzed, and their effects on toxic metals induced oxidative stress, physiological properties, and antioxidant defence systems of the Brassica rapa plant were also checked. The results revealed that the immobilization of Pb and Cd in soil treated with CHB was low, leading to a higher accumulation of metals in plants grown. However, nZVI-CHB could significantly immobilize Pb (57.5-62.12%) and Cd (64.1-75.9%) in the soil, leading to their lower accumulation in plants below recommended safe limits and eventually reduced carcinogenic risk (CR) and hazard quotient (HQ) for both Pb and Cd in children and adults below the recommended tolerable range of <1 for HQ and 10-6 - 10-4 for CR. Also, a low dose of nZVI-CHB significantly mitigated toxic metal-induced oxidative stress in the vegetable plant by inhibiting the toxic metals uptake and increasing antioxidant enzyme activities. Thus, this study provided another insightful way of converting environmental wastes to sustainable adsorbents for soil remediation and proved that a low-dose of nZVI-CHB can effectively improve soil quality, plant physiological attributes and reduce the toxic metals exposure health risk below the tolerable range.
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Affiliation(s)
- Moses Akintayo Aborisade
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Engineering Center for Technology of Protection and Function Construction of Ecological Critical Zone, Tianjin, 300072, China
| | - Hongzhi Geng
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Belay Tafa Oba
- College of Natural Science, Arba Minch University, 21, Arba Minch, Ethiopia
| | - Akash Kumar
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Efomah Andrew Ndudi
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | | | - Jiashu Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Daying Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Oluwaseun Princess Okimiji
- Department of Environmental Management, Faculty of Environmental Sciences, Lagos State University, PMB. 102101, Lagos State, Nigeria
| | - Oluwasheyi Zacchaeus Ojekunle
- Department of Environmental Management and Toxicology, Federal University of Agriculture, Abeokuta, P.M.B 2240, Ogun State, Nigeria
| | - Yongkui Yang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Peizhe Sun
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Lin Zhao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China; Tianjin Engineering Center for Technology of Protection and Function Construction of Ecological Critical Zone, Tianjin, 300072, China.
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36
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Zhou C, Wang J, Wang Q, Leng Z, Geng Y, Sun S, Hou H. Simultaneous adsorption of Cd and As by a novel coal gasification slag based composite: Characterization and application in soil remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 882:163374. [PMID: 37030369 DOI: 10.1016/j.scitotenv.2023.163374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/04/2023] [Accepted: 04/04/2023] [Indexed: 06/01/2023]
Abstract
Cadmium (Cd) and arsenic (As) co-contamination has become increasingly serious in China agricultural soil due to rapid industrialization and urbanization. The opposite geochemical behaviors of Cd and As pose huge challenges for developing a material for their simultaneous immobilization in soils. Coal gasification slag (CGS) as a by-product of coal gasification process, is always dumped into a local landfill, which has a negative impact on environment. Few reports have been available on applying CGS as a material to immobilize simultaneously multiple soil heavy metals. A series of iron-modified coal gasification slag (IGS) composites IGS3/5/7/9/11 (with different pH values) were synthesized by alkali fusion and iron impregnation. After modification, carboxyl groups were activated, and Fe was successfully loaded onto the surface of IGS in the form of FeO and Fe2O3. The IGS7 exhibited the best adsorption capacity with the maximum Cd and As adsorption capacity of 42.72 mg/g and 35.29 mg/g, respectively. The Cd was mainly adsorbed through electrostatic attraction and precipitation, while the As through complexation with iron (hydr)oxides. IGS7 significantly reduced the bioavailability of Cd and As in soil with Cd bioavailability reduced from 1.17 mg/kg to 0.69 mg/kg and As bioavailability reduced from 10.59 mg/kg to 6.86 mg/kg at 1 % IGS7 addition. The Cd and As were all transformed to more stable fractions after IGS7 addition. The acid soluble and reducible Cd fractions were transformed into oxidizable and residual Cd fractions, and the non-specifically and specifically adsorbed As fractions were transformed to amorphous iron oxide-bound As fraction. This study provides valuable references for the application of CGS to the remediation of Cd and As co-contaminated soil.
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Affiliation(s)
- Changzhi Zhou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Water Sciences, Beijing Normal University, Beijing 100875, China
| | - Junhuan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Qian Wang
- Technical Centre for Soil, Agricultural and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Zheng Leng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yue Geng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Shurui Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Hong Hou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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37
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Sun Y, Liu C, Gao Y, Zhang T, Jia Y, Wang S. All-in-one strategy to prepare molded biochar with magnetism from sewage sludge for high-efficiency removal of Cd(Ⅱ). JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131488. [PMID: 37121035 DOI: 10.1016/j.jhazmat.2023.131488] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/15/2023] [Accepted: 04/23/2023] [Indexed: 05/19/2023]
Abstract
Biochar in powder could lead to the separation difficulties after using and easy dispersion by wind with non-necessary consumption during the practical application. The current method for preparing molded biochar is multi-step, tedious, and required exogenous reagents. Moreover, the dehydration of sewage sludge with high water content (>85%) causes expensive production cost, limiting its secondary utilization. Therefore, an "all-in-one" strategy was developed to prepare molded biochar with magnetism by using sewage sludge as endogenetic binder, water source, carbon source, as well as magnetic source, and biomass wastes as water moderator and pore-forming agent. The molded biochar showed high removal capacity towards Cd(Ⅱ) of 456.2 mg/g, which was 6 times higher than the commercial activated carbon in powder (69.1 mg/g). The excellent removal performance of the molded biochar was in linear correlation the O/C ratio (R2 =0.855), resulting in the complexation with Cd(Ⅱ). DFT calculations indicated the amounts and species of oxygen changed the electron distribution and electron-donation properties of biochar for Cd(Ⅱ). Moreover, the Na+ exchanges with Cd(Ⅱ) were also an important removal mechanism. This study provided a novel synthesis strategy for the molded biochar with both high particle density and high adsorption capability.
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Affiliation(s)
- Yueru Sun
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Chuanqun Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Yuan Gao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
| | - Tingyu Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Yongfeng Jia
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Shaofeng Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
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38
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Zhu X, Gong W, Li W, Zhang C. Fixating lead in coal gangue with phosphate using phosphate-dissolving bacteria: Phosphorus dissolving characteristics of bacteria and adsorption mechanism of extracellular polymer. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131923. [PMID: 37364436 DOI: 10.1016/j.jhazmat.2023.131923] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/14/2023] [Accepted: 06/22/2023] [Indexed: 06/28/2023]
Abstract
Controlling and preventing lead pollution is currently the focus of environmental remediation. Coal gangue contains large quantities of lead, and its environmental impact cannot be ignored. This study investigated the tolerance of Stenotrophomonas maltophilia (YZ-1 train) to lead ion and its fixation effect on lead in coal gangue. The fixation mechanism of lead ions by using the YZ-1 train was studied with CaHPO4 and Ca3(PO4)2. The tolerance mechanism and fixation characteristics of the three bacterial extracellular polymers and cell components to lead were analyzed. The results show that the YZ-1 train had a strong resistance to lead ions. The amount of lead released from coal gangue can be reduced by up to 91.1% upon treatment with the YZ-1 train, which can dissolve phosphate minerals to form stable hydroxyapatite (Pb5(PO4)3(OH)) and pyromorphite (Pb5(PO4)3Cl) with lead ions. Tryptophan and tyrosine from cellular components and extracellular polymers with loosely and tightly bound proteins are the main participants in the fixation of lead ions. The by-products of soluble microbes affect the fixation of lead ions in soluble extracellular polymers. The carboxylic acids and carboxylates secreted by bacteria are involved in the adsorption and fixation of lead ions.
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Affiliation(s)
- Xiaobo Zhu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo, Henan 454000, China
| | - Wenhui Gong
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China
| | - Wang Li
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo, Henan 454000, China.
| | - Chuanxiang Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo, Henan 454000, China
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39
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Luo X, Du H, Zhang X, Tang B, Zhang M, Kang H, Ma Y. Enhanced adsorption and co-adsorption of heavy metals using highly hydrophilicity amine-functionalized magnetic hydrochar supported MIL-53(Fe)-NH 2: performance, kinetics, and mechanism studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27740-5. [PMID: 37233931 DOI: 10.1007/s11356-023-27740-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023]
Abstract
It is a "kill two birds with one stone" method to convert invasive plants into hydrochar via hydrothermal carbonization as well as coinciding with 3R rules (reduction, recycling, and reuse). In this work, a series of hydrochars (pristine, modified, and composite) derived from invasive plants Alternanthera philoxeroides (AP) were prepared and applied to the adsorption and co-adsorption of heavy metals (HMs) such as Pb(II), Cr(VI), Cu(II), Cd(II), Zn(II), and Ni(II). The results show that MIL-53(Fe)-NH2- magnetic hydrochar composite (M-HBAP) displayed a strong affinity for HMs, which the maximum adsorption capacities for HMs were 153.80 (Pb(II)), 144.77 (Cr(VI)), 80.58 (Cd(II)), 78.62 (Cu(II)), 50.39 (Zn(II)), and 52.83(Ni(II)) mg/g (c0 = 200 mg/L, t = 24 h, T = 25 ℃, pH = 5,2,6,4,6,5). This may be because the doping of MIL-53(Fe)-NH2 enhanced the surface hydrophilicity of hydrochar, which allows hydrochar to disperse in the water within 0.12 s and possessed excellent dispersibility compared with pristine hydrochar (BAP) and amine-functionalized magnetic modified hydrochar (HBAP). Furthermore, the BET surface area of BAP was improved from 5.63 to 64.10 m2/g after doing MIL-53(Fe)-NH2. M-HBAP shows a strong adsorption effect on the single HMs system (52-153 mg/g), while it decreased significantly (17-62 mg/g) in the mixed HMs system due to the competitive adsorption. Cr(VI) can produce strong electrostatic interaction with M-HBAP, Pb(II) can react with CaC2O4 on the surface of M-HBAP for chemical precipitation, and other HMs can react with functional groups on the surface of M-HBAP for complexation and ion exchange. In addition, five adsorption-desorption cycle experiments and vibrating sample magnetometry (VSM) curves also proved the feasibility of the M-HBAP application.
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Affiliation(s)
- Xin Luo
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Haiying Du
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China.
- Chengdu Yike Science and Technology Company Limited, Chengdu, Sichuan, China.
- Sichuan Keshengxin Environmental Technology Company, Chengdu, Sichuan, China.
| | - Xiaochao Zhang
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Bo Tang
- Chengdu Yike Science and Technology Company Limited, Chengdu, Sichuan, China
| | - Meichen Zhang
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Heng Kang
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Yanqi Ma
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
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40
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Kong Y, Xu B, Lu F, Han Z, Ma J, Chen Z, Shen J. Enhancement of 15% calcium oxide doped nano zero-valent iron on arsenic removal from high-arsenic acid wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27604-y. [PMID: 37217816 DOI: 10.1007/s11356-023-27604-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
Nano zero-valent iron (nZVI) has a great potential for arsenic removal, but it would form aggregates easily and consume largely by H+ in the strongly acidic solution. In this work, 15%CaO doped with nZVI (15%CaO-nZVI) was successfully synthesized from a simplified ball milling mixture combined with a hydrogen reduction method, which had a high adsorption capacity for As(V) removal from high-arsenic acid wastewater. More than 97% As(V) was removed by 15%CaO-nZVI under the optimum reaction conditions of pH 1.34, initial As(V) concentration 16.21 g/L, and molar ratio of Fe/As (nFe/nAs) 2.5:1. The effluent pH solution was weakly acidic 6.72, and the secondary arsenic removal treatment reduced the solid waste and improved arsenic grade in slag from the mass fraction of 20.02% to 29.07%. Multiple mechanisms including Ca2+ enhanced effect, adsorption, reduction, and co-precipitation coexisted for As(V) removal from high-arsenic acid wastewater. Doping of CaO might lead to improving cracking channels which was benefit for electronic transmission and the confusion of atomic distribution. The in situ weak alkaline environment generated on the surface of 15%CaO-nZVI would increase the content of γ-Fe2O3/Fe3O4, which was in favor for As(V) adsorption. In addition, H+ in the strongly acidic solution could accelerate corrosion of 15%CaO-nZVI and abundant fresh and reactive iron oxides continuously generated, which would provide plenty specific reactive site and fast charge transfer and ionic mobility for arsenic removal.
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Affiliation(s)
- Yanli Kong
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China
| | - Bingjie Xu
- School of Metallurgical Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China
| | - Fan Lu
- School of Metallurgical Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China
| | - Zhao Han
- School of Metallurgical Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Jiangya Ma
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China
| | - Zhonglin Chen
- State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China
| | - Jimin Shen
- State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China
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41
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Zheng X, Wu Q, Huang C, Wang P, Cheng H, Sun C, Zhu J, Xu H, Ouyang K, Guo J, Liu Z. Synergistic effect and mechanism of Cd(II) and As(III) adsorption by biochar supported sulfide nanoscale zero-valent iron. ENVIRONMENTAL RESEARCH 2023; 231:116080. [PMID: 37164285 DOI: 10.1016/j.envres.2023.116080] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/03/2023] [Accepted: 05/06/2023] [Indexed: 05/12/2023]
Abstract
Biochar derived from bamboo was used to support sulfide nanoscale zero-valent iron (S-nZVI@BC) for simultaneous removal of Cd(II) and As (III) from aqueous media. Scanning electron microscopy (SEM) and X-ray diffraction spectroscopy (XRD) characterization confirmed the successful synthesis of the S-nZVI@BC. Adsorption kinetics and isotherms indicated that co-adsorption of Cd(II) and As(III) onto S-nZVI@BC was well represented by pseudo-second-order model (R2Cd(II) = 0.990, R2As(III) = 0.995) and Langmuir model (R2Cd(II) = 0.954, R2As(III) = 0.936). The maximum adsorption was 162.365 and 276.133 mg/g for Cd(II) and As(III), respectively, in a co-adsorption system, which was significantly higher than that in a single adsorption system (103.195 and 223.736 mg/g, respectively). Batch experiments showed that the Cd(II)-to-As(III) concentration ratio significantly affected the co-adsorption with the optimal ratio of 1:2. Ca2+ and Mg2+ significantly inhibited Cd(II) removal. In contrast, phosphate and humic acid significantly inhibited As(III) removal. Electrochemical analysis indicated S-nZVI@BC had a lower corrosion potential and resistance than nZVI@BC, making it more conducive to electron transfer and chemical reaction. Electrostatic adsorption, complexation, co-precipitation, and redox were the primary mechanisms for Cd(II) and As(III) removal. Overall, the present study provides new insights into the synergistic removal of Cd(II) and As(III) by S-nZVI@BC, which is a very promising adsorbent for the effective removal of Cd(II) and As(III) from contaminated wastewater.
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Affiliation(s)
- Xiaoyu Zheng
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Qiuju Wu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Chao Huang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Ping Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Hao Cheng
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Chengyou Sun
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Jian Zhu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Haiyin Xu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Ke Ouyang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Jing Guo
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Zhiming Liu
- Department of Biology, Eastern New Mexico University, Portales, NM, 88130, USA.
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Kumar V, Rout C, Singh J, Saharan Y, Goyat R, Umar A, Akbar S, Baskoutas S. A review on the clean-up technologies for heavy metal ions contaminated soil samples. Heliyon 2023; 9:e15472. [PMID: 37180942 PMCID: PMC10172878 DOI: 10.1016/j.heliyon.2023.e15472] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/19/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
The soil contamination with heavy metal ions is one of the grave intricacies faced worldwide over the last few decades by the virtue of rapid industrialization, human negligence and greed. Heavy metal ions are quite toxic even at low concentration a swell as non-biodegradable in nature. Their bioaccumulation in the human body leads to several chronic and persistent diseases such as lung cancer, nervous system break down, respiratory problems and renal damage etc. In addition to this, the increased concentration of these metal ions in soil, beyond the permissible limits, makes the soil unfit for further agricultural use. Hence it is our necessity, to monitor the concentration of these metal ions in the soil and water bodies and adopt some better technologies to eradicate them fully. From the literature survey, it was observed that three main types of techniques viz. physical, chemical, and biological were employed to harness the heavy metal ions from metal-polluted soil samples. The main goal of these techniques was the complete removal of the metal ions or the transformation of them into less hazardous and toxic forms. Further the selection of the remediation technology depends upon different factors such as process feasibility/mechanism of the process applied, nature and type of contaminants, type and content of the soil, etc. In this review article, we have studied in detail all the three technologies viz. physical, chemical and biological with their sub-parts, mechanism, pictures, advantages and disadvantages.
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Affiliation(s)
- Vikas Kumar
- Department of Civil Engineering, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Chadetrik Rout
- Department of Civil Engineering, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Joginder Singh
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
- Corresponding author.
| | - Yajvinder Saharan
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Rohit Goyat
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts, And Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
- Corresponding author. Department of Chemistry, Faculty of Science and Arts, and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia.
| | - Sheikh Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - S. Baskoutas
- Department of Materials Science, University of Patras, Patras, Greece
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43
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Jin Y, Wang Y, Li X, Luo T, Ma Y, Wang B, Liang H. Remediation and its biological responses to Cd(II)-Cr(VI)-Pb(II) multi-contaminated soil by supported nano zero-valent iron composites. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161344. [PMID: 36610630 DOI: 10.1016/j.scitotenv.2022.161344] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/18/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Multi-metal contaminated soil has received extensive attention. The biochar and bentonite-supported nano zero-valent iron (nZVI) (BC-BE-nZVI) composite was synthesized in this study by the liquid-phase reduction method. Subsequently, the BC-BE-nZVI composite was applied to immobilize cadmium (Cd), chromium (Cr), and lead (Pb) in simulated contaminated soil. The simultaneous immobilization efficiencies of Cd, Cr(VI), Crtotal, and Pb were achieved at 70.95 %, 100 %, 86.21 %, and 100 %, respectively. In addition, mobility and bioavailabilities of Cd, Cr, and Pb were significantly decreased and the risk of iron toxicity was reduced. Stabilized metal species in the contaminated soil (e.g., Cd(OH)2, Cd-Fe-(OH)2, CrxFe1-xOOH, CrxFe1-x(OH)3, PbO, PbCrO4, and Pb(OH)2) were formed after the BC-BE-nZVI treatment. Thus, the immobilization mechanisms of Cd, Cr, and Pb, including adsorption, reduction, co-precipitation, and complexation co-exist with the metals. More importantly, bacterial richness, bacterial diversity, soil enzyme activities (dehydrogenase, urease, and fluorescein diacetate hydrolase), and microbial activity were enhanced by applying the BC-BE-nZVI composite, thus increasing the soil metabolic function. Over all, this work applied a promising procedure for remediating multi- metal contaminated soil by using the BC-BE-nZVI composite.
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Affiliation(s)
- Yi Jin
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, PR China
| | - Yaxuan Wang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, PR China
| | - Xi Li
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, PR China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, PR China.
| | - Ting Luo
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, PR China
| | - Yongsong Ma
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, PR China
| | - Bing Wang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, PR China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, PR China
| | - Hong Liang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, PR China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, PR China
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44
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Yin WM, Wang Y, Sun Y, Zhao ND, Wang C, Chen Z, Guo YR, Li S, Pan QJ. Confinement effect of network-structured carbon dots/cellulose nanocellulose/magnesium hydroxide for enhanced heavy metal ions capture and immobilization. Int J Biol Macromol 2023; 237:124194. [PMID: 36972825 DOI: 10.1016/j.ijbiomac.2023.124194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/02/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023]
Abstract
To solve pollution problem of heavy metal ions (HMIs) and recover them for sustainable development, a high-efficient-sewage treatment agent, carbon dots/cellulose nanofiber/Mg(OH)2 (CCMg), has been fabricated via a simple hydrothermal method. A variety of characterizations show that cellulose nanofiber (CNF) formed a layered-net structure. Hexagonal Mg(OH)2 flakes of about 100 nm has been attached on CNF. Carbon dots (CDs) around 10-20 nm in size were produced from CNF and distributed along CNF. The extraordinary structural feature endows CCMg with high removal performance towards HMIs. The up-taken capacities reach 992.8 and 667.3 mg g-1 for Cd2+ and Cu2+, respectively. The composite bears excellent durability in treating wastewater. Notably, the qualification of the drinking water can be satisfied while applying CCMg to handle Cu2+ wastewater. The mechanism of removal process has been proposed. Practically, Cd2+/Cu2+ ions were immobilized by CNF due to the space confinement effect. It achieves the facile separation and recovery of HMIs from the sewage, and more importantly, eliminates the risk of secondary contamination.
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Affiliation(s)
- Wei-Ming Yin
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yan Wang
- Harbin Center for Disease Control and Prevention (Harbin Center for Health Examination), Harbin 150030, China
| | - Yuan Sun
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Nian-Dan Zhao
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Chen Wang
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Zhijun Chen
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
| | - Shujun Li
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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45
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Wu K, Wang B, Dou R, Zhang Y, Xue Z, Liu Y, Niu Y. Synthesis of functional poly(amidoamine) dendrimer decorated apple residue cellulose for efficient removal of aqueous Hg(II). Int J Biol Macromol 2023; 231:123327. [PMID: 36681224 DOI: 10.1016/j.ijbiomac.2023.123327] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/07/2023] [Accepted: 01/15/2023] [Indexed: 01/20/2023]
Abstract
Water pollution caused by Hg(II) exerts hazardous effect to the environment and public health. The design and fabrication of eco-friendly bioadsorbents for efficient removal of Hg(II) from aqueous solution is a promising strategy. Herein, a series of bioadsorbents were synthesized by the decoration of apple residue cellulose with different generation (G) Schiff base functionalized poly(amidoamine) (PAMAM) dendrimers (SA-G0/CE, SA-G1.0/CE and SA-G2.0/CE). The structures of SA-G0/CE, SA-G1.0/CE and SA-G2.0/CE were characterized and their adsorption performances were determined comprehensively by considering various factors. The maximum adsorption capacity of SA-G0/CE, SA-G1.0/CE and SA-G2.0/CE for Hg(II) are 1.18, 1.73 and 1.88 mmol·g-1, respectively. The as-prepared bioadsorbents exhibit competitive adsorption capacity as compared with other reported adsorbents. Moreover, they exhibit remarkable adsorption selectivity toward Hg(II) with the coexistence of Ni(II), Cd(II), Mn(II), or Pb(II). The bioadsorbents display satisfactory adsorption performance in real water sample and can be reused with good regeneration property. Adsorption mechanism reveals that the functional groups of OH, -CONH-, CN and NC take part in the adsorption for Hg(II). The work not only opens a pathway to realize the reuse of apple residue, but also provides a promising strategy to construct efficient bioadsorbents for the decontamination of Hg(II) from aqueous solution.
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Affiliation(s)
- Kaiyan Wu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Bingxiang Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Ruyue Dou
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Yiqun Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Zhongxin Xue
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Yongfeng Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Yuzhong Niu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China.
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Zhao C, Yao J, Knudsen TŠ, Liu J, Zhu X, Ma B, Li H, Cao Y, Liu B. Performance and mechanisms for Cd(II) and As(III) simultaneous adsorption by goethite-loaded montmorillonite in aqueous solution and soil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 330:117163. [PMID: 36603255 DOI: 10.1016/j.jenvman.2022.117163] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/16/2022] [Accepted: 12/25/2022] [Indexed: 06/17/2023]
Abstract
A series of goethite-modified montmorillonite (GMt) materials was synthesized for the amelioration of cationic cadmium (Cd) and anionic arsenic (As) complex contaminants in soil and water bodies. The results showed that goethite (Gt) was successfully loaded onto the surface of montmorillonite (Mt), which possessed more functional groups (such as Fe-O, and Fe-OH) and a larger specific surface area. GMt-0.5 (Mt loaded with Gt at a ratio of 0.5:1) showed the highest adsorption capacity for Cd(II) and As(III) with the maximum of 50.61 mg/g and 57.58 mg/g, respectively. The removal rate of Cd(II) was highly pH dependent, while the removal rate of As(III) showed little dependence on pH. The goethite on montmorillonite might contribute to the formation of surface complexes with As(III) and oxidation of As(III) to As(V). In the binary system, both, synergistic and competitive adsorption existed simultaneously. Importantly, in the binary system, the removal of As(III) was more favorable because of the electrostatic interaction, formation of a ternary complex, and co-precipitation. In addition, the amendment of GMt-0.5 significantly reduced the availability of Cd and As in the soil. This study suggests that GMt-0.5 is a promising candidate for the simultaneous immobilization of metal (loid)s in both, aqueous solution and mine soil.
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Affiliation(s)
- Chenchen Zhao
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China
| | - Jun Yao
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China.
| | - Tatjana Šolević Knudsen
- Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, University of Belgrade, Njegoševa 12, Belgrade, 11000, Serbia
| | - Jianli Liu
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China
| | - Xiaozhe Zhu
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China
| | - Bo Ma
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China
| | - Hao Li
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China
| | - Ying Cao
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China
| | - Bang Liu
- School of Water Resources and Environment, China University of Geosciences (Beijing), 29 Xḍsueyuan Road, Haidian District, Beijing, 100083, China
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Kahvecioğlu K, Teğin İ, Yavuz Ö, Saka C. Phosphorus and oxygen co-doped carbon particles based on almond shells with hydrothermal and microwave irradiation process for adsorption of lead (II) and cadmium (II). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:37946-37960. [PMID: 36576627 DOI: 10.1007/s11356-022-24968-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
In this study, the production of activated carbon based on almond shells by microwave heating with KOH activation and then the modification of activated carbon with phosphorus and oxygen as a result of hydrothermal heating with phosphoric acid were carried out to increase the Cd(II) and Pb(II) adsorption efficiency. The resulting materials were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric/differential thermal analyzer (TG-DTA), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and nitrogen adsorption. Adsorption performance, kinetics and thermodynamics of phosphorus, and oxygen-doped activated carbons were evaluated. The results showed that the adsorption of both Cd(II) and Pb(II) on phosphorus and oxygen-doped activated carbons obeyed the Langmuir isotherm and pseudo-second-order kinetics. The adsorption capacity values (Qm) obtained from the Langmuir isotherm for Cd(II) and Pb(II) adsorption were 185.18 mg/g and 54.64 mg/g, respectively. At the same time, the adsorption mechanism of Pb(II) and Cd(II) on the respective adsorbents was evaluated. As a result of phosphorus and oxygen atoms, Lewis base sites on carbon atoms and Lewis acid sites on phosphorus atoms are likely to form on the surface. These Lewis base sites can act as important active sites in adsorption reactions, especially of positively charged Pb(II) and Cd(II) ions.
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Affiliation(s)
| | - İbrahim Teğin
- Faculty of Science and Letters, Siirt University, Siirt, Turkey
| | - Ömer Yavuz
- Faculty of Education, Dicle University, Diyarbakır, Turkey
| | - Cafer Saka
- Faculty of Health Sciences, Siirt University, Siirt, Turkey.
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El Mouden A, El Messaoudi N, El Guerraf A, Bouich A, Mehmeti V, Lacherai A, Jada A, Sher F. Multifunctional cobalt oxide nanocomposites for efficient removal of heavy metals from aqueous solutions. CHEMOSPHERE 2023; 317:137922. [PMID: 36682638 DOI: 10.1016/j.chemosphere.2023.137922] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/02/2023] [Accepted: 01/18/2023] [Indexed: 06/17/2023]
Abstract
In this study, co-precipitation synthesis of natural clay (NC) with Co3O4 nanoparticles (NPs) is carried out to elaborate the super NC@Co3O4 nanocomposites with admirable salinity confrontation, environmental stability and reusability, to eliminate heavy metal pollution such as toxic Pb(II) and Cd(II) ions. The advantages of using the NC@Co3O4 adsorbent are easy synthesis and biocompatibility. In addition, NC@Co3O4 can keep an excellent adsorption capacity by taking into account various environmental parameters such as the pH solution, NC@Co3O4 dose, adsorption process time and the initial heavy metals concentration. Furthermore, FTIR, XRD, TGA, SEM-EDS, TEM and AFM analyses were performed to confirm NC@Co3O4 nanocomposites synthesis and characterisation. The adsorption efficiencies of Pb(II) and Cd(II) ions by NC@Co3O4 nanocomposites were demonstrated to be up to 86.89% and 82.06% respectively. Regarding the adsorption from water onto the NC@Co3O4 nanocomposites, kinetics data were well fitted with PSO kinetic model, whereas a good agreement was found between the equilibrium adsorption and theoretical Langmuir isotherm model leading to maximum adsorption capacities of 55.24 and 52.91 mg/g, for Pb(II) and Cd(II) respectively. Monte Carlo (MC) simulations confirmed the spontaneous of this adsorption based on the negative values of Eads. The MC simulations were performed to highlight the interactions occurring between heavy metal ions and the surface of NC@Co3O4 nanocomposites, these were well correlated with the experimental results. Overall the study showed that NC@Co3O4 nanoadsorbents have strongly versatile applications and are well designed for pollutant removal from wastewater due to their unique adsorptive properties.
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Affiliation(s)
- Abdelaziz El Mouden
- Laboratory of Applied Chemistry and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Noureddine El Messaoudi
- Laboratory of Applied Chemistry and Environment, Ibn Zohr University, Agadir, 80000, Morocco.
| | - Abdelqader El Guerraf
- Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Mohammed First University, Oujda, 60000, Morocco
| | - Amal Bouich
- Department of Applied Physics, Institute of Design and Manufacturing (IDF), Polytechnic University of Valencia, Valencia, 46000, Spain
| | - Valbonë Mehmeti
- Faculty of Agriculture and Veterinary, University of Prishtina, Prishtina, 10000, Kosovo
| | - Abdellah Lacherai
- Laboratory of Applied Chemistry and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Amane Jada
- Institute of Materials Science of Mulhouse (IS2M), High Alsace University, Mulhouse, 68100, France
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, United Kingdom.
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Zhang Y, Zhang Y, Wu A. Remediation effects and mechanisms of typical minerals combined with inorganic amendment on cadmium-contaminated soil: a field study in wheat. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:38605-38615. [PMID: 36585588 DOI: 10.1007/s11356-022-24976-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The remediation of cadmium (Cd)-contaminated soil has gained much attention recently because Cd in soil threatens human health through the food chain. Although tremendous progress has been made in the remediation of Cd-contaminated soil in rice acid soil system, the mechanism and effects of Cd-contaminated soil remediation under these amendments in wheat weak alkaline soil are still limited. In this study, the remediation effect and related mechanism of Cd in weakly alkaline soil were carried out using zeolite, diatomite, and sodium bentonite as the main remediation components, supplemented by calcium dihydrogen phosphate and fulvic acid. The results of field experiments showed that the concentration of Cd reduced by 27.3 ~ 31.2% in rhizosphere soil and 34.3 ~ 54.2% in non-rhizosphere soil, and the maximum reduction rate of Cd concentration in wheat grain was 25.5%. The main factors affecting the concentration of Cd in wheat grains include the change in exchangeable Cd, the absorption capacity of wheat root, and the inhibitory effect on Cd transport from stem to grain in this paper. In general, this work provides a new potential management feasible pathway to alleviate the Cd toxicity of weakly alkaline soil and wheat grain.
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Affiliation(s)
- Yuenan Zhang
- (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering, 315201, Ningbo, China
| | - Yujie Zhang
- (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering, 315201, Ningbo, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Aiguo Wu
- (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering, 315201, Ningbo, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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50
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Synthesis of a New Co Metal-Organic Framework Assembled from 5,10,15,20-Tetrakis((pyridin-4-yl) phenyl)porphyrin "Co-MTPhPyP" and Its Application to the Removal of Heavy Metal Ions. Molecules 2023; 28:molecules28041816. [PMID: 36838804 PMCID: PMC9964701 DOI: 10.3390/molecules28041816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
The synthesis of a Co metal-organic framework assembled from 5,10,15,20-tetrakis((pyridin-4-yl)phenyl)porphyrin; TPhPyP) "Co-MTPhPyP" is reported. The TPhPyP ligand was synthesized via aldehyde condensation in 28% yield and characterized by 1H nuclear magnetic resonance (1H NMR), Fourier-transform infrared (FTIR), high-resolution mass spectrometry (HRMS), and UV-visible spectroscopy (UV-vis). Co-MTPhPyP was prepared by the solvothermal method from TPhPyP and CoCl2·H2O in 55% yield and characterized by X-ray powder diffraction (XRD), FTIR, thermogravimetric analysis (TGA), field-emission scanning electron microscopy with energy-dispersive X-ray (FESEM-EDS), X-ray photoelectron spectroscopy (XPS), and dynamic light scattering (DLS), showing a particle size distribution of 418 ± 58 nm. The sorption properties of the Co-MTPhPyP for the effective removal of Pb(II) and Cu(II) were evaluated in an aqueous medium and Cthe results showed uptake capacities of 383.4 and 168 mg of the metal g-1 after 2 h, respectively. Kinetic studies of Pb(II) adsorption by Co-MTPhPyP were adjusted to the pseudo-second-order model with a maximum adsorption capacity of 458.8 mg g-1 at 30 min of exposition.
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