1
|
Zhou S, Yang YX, Cao JJ, Meng LL, Cao JN, Zhang C, Zhang S, Bate B. Monitoring of copper adsorption on biochar using spectral induced polarization method. ENVIRONMENTAL RESEARCH 2024; 251:118778. [PMID: 38527721 DOI: 10.1016/j.envres.2024.118778] [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: 01/11/2024] [Revised: 03/05/2024] [Accepted: 03/22/2024] [Indexed: 03/27/2024]
Abstract
Copper contaminant generated from mining and industrial smelting poses potential risks to human health. Biochar, as a low-energy and cost-effective biomaterial, holds value in Cu remediation. Spectral Induced Polarization (SIP) technique is employed in this study to monitor the Cu remediation processes of by biochar in column experiments. Cation exchange at low Cu2+ concentrations and surface complexation at high Cu2+ concentrations are identified as the major mechanisms for copper retention on biochar. The normalized chargeability (mn) from SIP signals linearly decreased (R2 = 0.776) with copper retention under 60 mg/L Cu influent; while mn linearly increases (R2 = 0.907, 0.852) under high 300 and 700 mg/L Cu influents. The characteristic polarizing unit sizes (primarily the pores adsorbing Cu2+) calculated from Schwartz equation match well with experimental results by mercury intrusion porosimetry (MIP). It is revealed that Cu2+ was driven to small pores (∼3 μm) given high concentration gradient (influent Cu2+ concentration of 700 mg/L). Comparing to activated carbon, biochar is identified as an ideal adsorbent for Cu remediation, given its high adsorption capacity, cost-effectiveness, carbon-sink ability, and high sensitivity to SIP responses - the latter facilitates its performance assessment.
Collapse
Affiliation(s)
- Sheng Zhou
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - Yi-Xin Yang
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - Jing-Jing Cao
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - Long-Long Meng
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - Jun-Nan Cao
- Department of Civil Engineering and Construction, Georgia Southern University, Statesboro, USA
| | - Chi Zhang
- Department of Meteorology and Geophysics, University of Vienna, Vienna, Austria
| | - Shuai Zhang
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - B Bate
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China.
| |
Collapse
|
2
|
Yang Y, Liu R, Zhou Y, Tang Y, Zhang J, Wang Y, Dai T, Zou P, Bi X, Li S. Screening and performance optimization of fungi for heavy metal adsorption in electrolytes. Front Microbiol 2024; 15:1371877. [PMID: 38591027 PMCID: PMC10999689 DOI: 10.3389/fmicb.2024.1371877] [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: 01/17/2024] [Accepted: 02/27/2024] [Indexed: 04/10/2024] Open
Abstract
The resource recovery and reuse of precious metal-laden wastewater is widely recognized as crucial for sustainable development. Superalloy electrolytes, produced through the electrolysis of superalloy scrap, contain significant quantities of precious metal ions, thereby possessing substantial potential for recovery value. This study first explores the feasibility of utilizing fungi to treat Superalloy electrolytes. Five fungi resistant to high concentrations of heavy metals in electrolytes (mainly containing Co, Cr, Mo, Re, and Ni) were screened from the soil of a mining area to evaluate their adsorption characteristics. All five fungi were identified by ITS sequencing, and among them, Paecilomyces lilacinus showed the best adsorption performance for the five heavy metals; therefore, we conducted further research on its adsorption characteristics. The best adsorption effect of Co, Cr, Mo, Re, and Ni was 37.09, 64.41, 47.87, 41.59, and 25.38%, respectively, under the conditions of pH 5, time 1 h, dosage 26.67 g/L, temperature 25-30°C, and an initial metal concentration that was diluted fivefold in the electrolyte. The biosorption of Co, Mo, Re, and Ni was better matched by the Langmuir model than by the Freundlich model, while Cr displayed the opposite pattern, showing that the adsorption process of P. lilacinus for the five heavy metals is not a single adsorption mechanism, but may involve a multi-step adsorption process. The kinetics study showed that the quasi-second-order model fitted better than the quasi-first-order model, indicating that chemical adsorption was the main adsorption process of the five heavy metals in P. lilacinus. Fourier transform infrared spectroscopy revealed that the relevant active groups, i.e., hydroxyl (-OH), amino (-NH2), amide (- CONH2), carbonyl (-C = O), carboxyl (-COOH), and phosphate (PO43-), participated in the adsorption process. This study emphasized the potential application of P. lilacinus in the treatment of industrial wastewater with extremely complex background values.
Collapse
Affiliation(s)
- Yuhui Yang
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming, China
- School of Ecology and Environmental Science, Institute for Ecological Research and Pollution Control of Plateau Lakes, Yunnan University, Kunming, China
| | - Rui Liu
- School of Ecology and Environmental Science, Institute for Ecological Research and Pollution Control of Plateau Lakes, Yunnan University, Kunming, China
| | - Yizhou Zhou
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Yingnan Tang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Jing Zhang
- International School of Shenyang Jianzhu University, Shenyang, China
| | - Yu Wang
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming, China
- School of Ecology and Environmental Science, Institute for Ecological Research and Pollution Control of Plateau Lakes, Yunnan University, Kunming, China
| | - Tingting Dai
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming, China
- School of Ecology and Environmental Science, Institute for Ecological Research and Pollution Control of Plateau Lakes, Yunnan University, Kunming, China
| | - Ping Zou
- School of Ecology and Environmental Science, Institute for Ecological Research and Pollution Control of Plateau Lakes, Yunnan University, Kunming, China
| | - Xiaoyi Bi
- School of Ecology and Environmental Science, Institute for Ecological Research and Pollution Control of Plateau Lakes, Yunnan University, Kunming, China
| | - Shuibing Li
- School of Ecology and Environmental Science, Institute for Ecological Research and Pollution Control of Plateau Lakes, Yunnan University, Kunming, China
| |
Collapse
|
3
|
Xue W, Liu H, Li J, Chen X, Wen S, Guo J, Shi X, Cao S, Gao Y, Wang R, Xu Y. Immobilization of cadmium in river sediments by different modified nanoscale zero-valent iron: performance, mechanisms, and Fe dissolution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:117892-117908. [PMID: 37874516 DOI: 10.1007/s11356-023-30475-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: 03/27/2023] [Accepted: 10/10/2023] [Indexed: 10/25/2023]
Abstract
Modified nanoscale zero-valent iron (NZVI) exhibited great potential for the remediation of heavy metal contaminated river sediments, but its mechanisms and environmental risks are still unclear. This study systematically discussed the performance and the mechanisms of modified NZVI materials, i.e., sodium alginate-coated NZVI (SNZVI), rhamnolipid-coated NZVI (RNZVI), and graphene oxide-loaded NZVI (GNZVI), for the stabilization of Cd in sediment, with the exploration of their stability to Cd at various pH values and Fe dissolution rate. Compared with the control, the toxicity characteristic leaching procedure (TCLP) leachable Cd decreased by 52.66-96.28%, and the physiologically based extraction test (PBET) extractable Cd decreased by 44.68-70.21% after 56 days of incubation with the immobilization efficiency varying according to GNZVI > RNZVI > SNZVI > NZVI. Besides, the adsorption behavior of Cd on materials was fitted with the Freundlich model and classified as an endothermic, spontaneous, and chemical adsorption process. SEM-EDX, XRD, and FTIR results verified that the stabilization mechanisms of Cd were principally based on the adsorption, complexation of Cd2+ with secondary Fe minerals (including Fe2O3, γ-Fe2O3, and γ-FeOOH) and precipitation (Cd(OH)2). From the risk assessment results, it was observed that the materials were favorable for Cd stabilization at a pH range from 7 to 11, meanwhile, the leaching concentration of Fe in the overlying water was detected below the limit value. These findings pave the way to developing an effective strategy to remediate Cd contaminated river sediments.
Collapse
Affiliation(s)
- Wenjing Xue
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Hongdou Liu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Jun Li
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Xinyu Chen
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Siqi Wen
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Jiaming Guo
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Xiaoyu Shi
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Shan Cao
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Yang Gao
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, 410114, People's Republic of China
| | - Rongzhong Wang
- School of Resource & Environment and Safety Engineering, University of South China, Heng Yang, 421001, People's Republic of China
| | - Yiqun Xu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China.
| |
Collapse
|
4
|
Senniappan S, Palanisamy S, Manon Mani V, Umesh M, Govindasamy C, Khan MI, Shanmugam S. Exploring the adsorption efficacy of Cassia fistula seed carbon for Cd (II) ion removal: Comparative study of isotherm models. ENVIRONMENTAL RESEARCH 2023; 235:116676. [PMID: 37453504 DOI: 10.1016/j.envres.2023.116676] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/20/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
The current study demonstrates the potential of Cassia fistula seed carbon (CFSC), a waste lignocellulosic biomass, to eliminate Cd (II) ion-from saturated liquid samples. The efficient removal of about 93.2% (w/v) of Cd (II) ions from 10 mg/L concentration was achieved within 80 min of treatment. The CFSC dosage of 100 mg/50 mL accounted as optimal for enhanced Cd (II) removal. Cd (II) adsorption onto CFSC was observed to be maximum at pH 6. The investigational trials were assessed with three isotherm models such Dubinin-Radushkevich, Freundlich, and Langmuir. The specifications obtained from this experimental study align well with the Langmuir isotherm model, which describes the maximal adsorption capacity of 68.02 mg/g. Cd (II) adsorption data from this study exhibited the R2 of 0.9 under pseudo-second-order. Maximum desorption (76.3% w/v) was obtained with 0.3 M HCL. This study revealed that thermally activated C. fistula seed carbon (CFSC) can be tuned to be lucrative adsorbent for Cd (II) elimination from water and waste-water.
Collapse
Affiliation(s)
- Sasireka Senniappan
- Department of Chemistry, V.S.B College of Engineering Technical Campus, Coimbatore, Tamil Nadu, India.
| | - Shanmughaprabha Palanisamy
- Department of Chemistry, Park College of Engineering and Technology, Coimbatore, 641659, Tamil Nadu, India
| | - Vellingiri Manon Mani
- Department of Biotechnology, Rathnavel Subramaniam College of Arts and Science, Coimbatore, 641402, Tamil Nadu, India
| | - Mridul Umesh
- Department of Life Sciences, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, Karnataka, India
| | - Chandramohan Govindasamy
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
| | - Muhammad Ibrar Khan
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
| | - Sabarathinam Shanmugam
- Biosystems Engineering, Institute of Forestry and Engineering, Estonian University of Life Sciences, Kreutzwaldi, 51006, Tartu, Estonia.
| |
Collapse
|
5
|
Singh S, Naik TSSK, Uppara B, Narasimhappa P, Varshney R, Chauhan V, Shehata N, Thamaraiselvan C, Subramanian S, Singh J, Khan NA, Zahmatkesh S, Singh L, Ramamurthy PC. Novel and sustainable green sulfur-doped carbon nanospheres via hydrothermal process for Cd (II) ion removal. CHEMOSPHERE 2023; 328:138533. [PMID: 37004819 DOI: 10.1016/j.chemosphere.2023.138533] [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: 12/30/2022] [Revised: 03/13/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
Herein, the synthesis, characterization, and adsorption performance of a novel green sulfur-doped carbon nanosphere (S-CNs) is studied to eliminate Cd (II) ions from water effectively. S-CNs were characterized using different techniques including Raman spectroscopy, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDX), , Brunauer-Emmett-Teller (BET) specific surface area analysis and Fourier transform infrared spectrophotometry (FT-IR), were performed. The efficient adsorption of the Cd (II) ions onto S-CNs strongly depended on pH, initial concentration of Cd (II) ions, S-CNs dosage, and temperature. Four isotherm models (Langmuir, Freundlich, Temkin & Redlich Peterson) were tested for modeling. Out of four, Langmuir showed more applicability than the other three models, with a Qmax value of 242.72 mg/g. Kinetic modeling studies suggest a superior fit of the obtained experimental data with the Elovich equation (linear) and pseudo-second-order (non-linear) rather than other linear and non-linear models. Data obtained from thermodynamic modeling indicates that using S-CNs for Cd (II) ions adsorption is a spontaneous and endothermic . The current work recommends using better and recyclable S-CNs to uptake excess Cd (II) ions.
Collapse
Affiliation(s)
- Simranjeet Singh
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - T S S K Naik
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Basavaraju Uppara
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Pavithra Narasimhappa
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - R Varshney
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - V Chauhan
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India
| | - N Shehata
- Department of Environmental Science and Industrial Development, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Egypt
| | - C Thamaraiselvan
- Inter Disciplinary Centre for Energy Research (ICER), Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - S Subramanian
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Joginder Singh
- Department of Microbiology, Lovely Professional University, Jalandhar, Punjab, 144111, India
| | - Nadeem A Khan
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Sasan Zahmatkesh
- Tecnologico de Monterrey, Escuela de Ingenieríay Ciencias, Puebla, Mexico
| | - Lakhveer Singh
- Department of Chemistry, Sardar Patel University, Mandi, 175001, Himachal Pradesh, India
| | - Praveen C Ramamurthy
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India.
| |
Collapse
|
6
|
Zong Y, Wang X, Zhang H, Li Y, Yu J, Wang C, Cai Z, Wei J, Ding L. Preparation of a ternary composite based on water caltrop shell derived biochar and gelatin/alginate for cadmium removal from contaminated water: Performances assessment and mechanism insight. Int J Biol Macromol 2023; 234:123637. [PMID: 36775227 DOI: 10.1016/j.ijbiomac.2023.123637] [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: 11/03/2022] [Revised: 01/15/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023]
Abstract
A ternary composite (SA/GE@BC) for cadmium removal from wastewater was successfully prepared. The alginate and gelatin were successfully impregnated with biochar (derived from water caltrop shell) to improve the recyclability and adsorption capacity. The prepared SA/GE@BC demonstrated a good removal for cadmium at pH 4.0-7.0 conditions. The cadmium removal increased with increasing SA/GE@BC dosage. The adsorption kinetics process was well consistent with the pseudo-second order model. And the Langmuir model (R2 > 0.99) best described the isotherm data. The calculated adsorption capacity reached a maximum of 86.25 mg/g. The adsorption was a spontaneous and endothermic process, and elevating temperature favored the removal of cadmium. The alginate-gelatin composition enhanced the number of oxygenated functional groups and exchangeable ions. This enhanced the removal of cadmium by complexation and cation ion exchange. Also, the removal mechanism of cadmium on SA/GE@BC involved electrostatic attraction and π-bond coordination. The saturated SA/GE@BC could be well regenerated by 0.1 M HNO3. All these results suggested the preparation of SA/GE@BC could effectively use waste resources to produce highly effective adsorbents for removing cadmium from contaminated water.
Collapse
Affiliation(s)
- Yiming Zong
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Xinxiang Wang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Hao Zhang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Yan Li
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan 243032, China
| | - Jian Yu
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Chen Wang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Zhantao Cai
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Jincheng Wei
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China
| | - Lei Ding
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243032, China; Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan 243032, China.
| |
Collapse
|
7
|
Cadmium adsorption from aqueous solution using alkali modified oil palm empty fruit bunch. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
8
|
Mariyam S, Zuhara S, Al-Ansari T, Mackey H, McKay G. Novel high capacity model for copper binary ion exchange on e-waste derived adsorbent resin. ADSORPTION 2022. [DOI: 10.1007/s10450-022-00360-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
AbstractHeavy metal water pollution is a global concern in recent years. Copper is a toxic metal at higher concentrations (> 20 μg /g) and needs to be removed using ion exchanger systems. This study investigates the removal efficiencies of copper by the non-metallic fraction (NMF) waste printed circuit boards (PCBs). The high maximum adsorption capacity of copper by the PCB-derived material after activation with KOH was 2.65 mmol/g, and the experimental isotherm was best correlated by the Temkin model. Finally, this study presents a novel dual site adsorption/ion exchange mechanism, wherein the potassium (from the activation) and calcium (present in the structure) served as ion exchange sites for the copper in the solution. Therefore, this recycling study, focusing on cyclic environmental management, converts a major waste material to an activated ion exchange resin (high capacity) for the removal of copper from wastewater solutions and successfully regenerates the resin for re-use while producing an acidic copper solution for recovery by electrolysius or chemical salt precipitation.
Collapse
|
9
|
Liu L, Yue T, Liu R, Lin H, Wang D, Li B. Efficient absorptive removal of Cd(Ⅱ) in aqueous solution by biochar derived from sewage sludge and calcium sulfate. BIORESOURCE TECHNOLOGY 2021; 336:125333. [PMID: 34082334 DOI: 10.1016/j.biortech.2021.125333] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 05/20/2021] [Accepted: 05/22/2021] [Indexed: 06/12/2023]
Abstract
Biochar derived from co-pyrolysis of sewage sludge and calcium sulfate was used to remove Cd(II) from aqueous solution. The results showed that the Cd(Ⅱ) adsorption better followed Freundlich model, and the maximum adsorption capacities were 109.0 mg/g (288 K), 127.9 mg/g (298 K) and 145.4 mg/g (308 K). The Cd(Ⅱ) removal was a multi-layer adsorption process dominated by chemisorption, which was also a spontaneous and endothermic process. The contribution of physisorption gradually increased as the Cd(Ⅱ) initial concentration. The Cd(Ⅱ) removal process which better followed pseudo-second-order kinetic model, was divided into three stages. The first (0-0.3 h) and second stages (0.3-2 h) were separately controlled by liquid film diffusion/intraparticle diffusion/chemical reaction and liquid film diffusion/chemical reaction, while the third stage (0.3-24 h) was the dynamic equilibrium process. The speciation distribution of Cd on biochar surface was mainly CdCO3/CdOOC and CdO/CdSiO3, indicating coprecipitation, ion exchange and complexation contributed more to the Cd(Ⅱ) removal.
Collapse
Affiliation(s)
- Liheng Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Tiantian Yue
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Rui Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Hua Lin
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
| | - Dunqiu Wang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China.
| | - Baoxiang Li
- Office of Teaching Affairs, Guilin University of Technology, Guilin 541004, China
| |
Collapse
|
10
|
Su L, Zhang H, Oh K, Liu N, Luo Y, Cheng H, Zhang G, He X. Activated biochar derived from spent Auricularia auricula substrate for the efficient adsorption of cationic azo dyes from single and binary adsorptive systems. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:101-121. [PMID: 34280158 DOI: 10.2166/wst.2021.222] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, spent Auricularia auricula substrate (AS)-derived biochar (ASBCs) and activated biochar with NaOH (A-ASBC) were evaluated for the adsorption of cationic azo dyes, including methylene blue (MB), rhodamine B (RB), and crystal violet (CV), from single and binary adsorptive systems. A-ASBC showed a higher maximum adsorption capacity for these dyes (MB: 53.62 mg·g-1, RB: 32.33 mg·g-1, CV: 735.73 mg·g-1) than ASBCs in a single system because it had a greater specific surface area and more oxygen containing-functional groups on the surface. The adsorption process of the three dyes onto the adsorbents was in good agreement with the Freundlich adsorption isotherm and fit the pseudo-second-order kinetic model, which revealed sorbate polymolecular layer formation over the adsorbent surface and the involvement of chemisorption. The adsorption mechanism showed that the adsorption of three dyes on adsorbents could be postulated as a multistep process with extraordinary affinity-induced adsorption in terms of both physisorption and chemisorption. In the binary adsorptive system, the results showed that all MB, RB, and CV had antagonistic/competitive effects on each other's adsorption (QBinary/QSingle < 1). Furthermore, a phytotoxic assay affirmed the effectiveness of the adsorbent in adsorbing dye species from aqueous solutions using Brassica pekinensis L. seeds as the model. Therefore, activated biochar prepared from AS can be used as a potentially economical and effective adsorbent for treating printing and dyeing wastewater.
Collapse
Affiliation(s)
- Long Su
- College of Resources and Environment, Shanxi Agricultural University, Shanxi Taigu 030801, China
| | - Haibo Zhang
- College of Resources and Environment, Shanxi Agricultural University, Shanxi Taigu 030801, China
| | - Kokyo Oh
- Center for Environmental Science in Saitama, Kazo City, Saitama 347-0115, Japan
| | - Na Liu
- College of Resources and Environment, Shanxi Agricultural University, Shanxi Taigu 030801, China
| | - Yuan Luo
- College of Resources and Environment, Shanxi Agricultural University, Shanxi Taigu 030801, China
| | - Hongyan Cheng
- College of Resources and Environment, Shanxi Agricultural University, Shanxi Taigu 030801, China
| | - Guosheng Zhang
- College of Resources and Environment, Shanxi Agricultural University, Shanxi Taigu 030801, China
| | - Xiaofang He
- College of Resources and Environment, Shanxi Agricultural University, Shanxi Taigu 030801, China
| |
Collapse
|
11
|
Jing F, Chen C, Chen X, Liu W, Wen X, Hu S. Cadmium transport in red paddy soils amended with wheat straw biochar. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:381. [PMID: 34085125 DOI: 10.1007/s10661-021-09162-3] [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: 11/27/2020] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) can be leached from soil into the groundwater and exhibit its adverse effect on the health of animals and humans. While previous studies have studied the process of Cd transport in water-saturated sand columns, literature regarding Cd transport in soil is scarce. The aim of this experiment was to investigate the transport of Cd in soil columns and biochar application rate effects on the mobility and distribution of Cd in soil. The red paddy soil was collected from the paddy of Changsha County, Hunan Province in southern China. Batch sorption and column experiments were conducted to study the adsorption isotherms of Cd2+ and its mobility at different biochar application rate treatments (0, 0.5, 1, 1.5, and 2%) referenced here as A0, A10, A20, A30, and A40, respectively. The Cd concentration of in effluent samples and digestion solutions was measured by inductively coupled plasma optical emission spectrometer (ICP-OES, Thermo Fisher Scientific, USA). After finishing the column experiment, columns were dissected into five layers (1-cm segments), the Cd fractions in soil were performed by the European Community Bureau of Reference (BCR). The amount of Cd sorption among treatments decreased in the order of A40 > A30 > A20 > A10 > A0, and the Langmuir model was more suitable to study the Cd2+ adsorption on biochar-amended soil than Freundlich model. Breakthrough curves showed that increasing biochar application rate increased the initial breakthrough time, whereas the pore-water velocity and dispersion coefficient were 81.0 and 99.8% lower in the A40 treatments than in the A0 treatments, respectively. Increasing biochar application rate enhanced the pH but reduced redox potential (Eh) in the most of effluents. Compared with A0, the concentration of Cd retained in soil columns increased by 86.6% in the A40 treatments. However, BCR sequential extractions showed that biochar addition in A40 treatments increased the acid soluble fraction but reduced the reducible fraction. In A40 treatments, compared with the 0-1-cm soil layer, the relative Cd concentration (N/Ni) in the 1-2-, 2-3-, 3-4-, and 4-5-cm soil layers increased by 5.4, 10.9, 14.3, and 21.9%, respectively. Biochar application in A40 treatments showed strong capacity for retarding Cd transport in soil, while the potential mobility of Cd in soil should be considered.
Collapse
Affiliation(s)
- Feng Jing
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Can Chen
- College of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, People's Republic of China
| | - Xiaomin Chen
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
| | - Wei Liu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Xin Wen
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Shimin Hu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| |
Collapse
|
12
|
Yin Z, Zhu L, Mo F, Li S, Hu D, Chu R, Liu C, Hu C. Preparation of biochar grafted with amino-riched dendrimer by carbonization, magnetization and functional modification for enhanced copper removal. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.04.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
13
|
Zhang Y, Qin J, Yi Y. Biochar and hydrochar derived from freshwater sludge: Characterization and possible applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 763:144550. [PMID: 33373787 DOI: 10.1016/j.scitotenv.2020.144550] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
Freshwater sludge (FS) is generated in large quantities during the production of drinking water every day. It is largely underutilized, and has long been filter pressed to sludge cake and then disposed of in landfills. The search for more economical and sustainable disposal or reuse options is urgently needed. Biochar and hydrochar are increasingly popular wastes derived materials with huge potential for soil improvement, environmental remediation, and mitigation of climate change, but there is a lack of research on the production of FS derived biochar and hydrochar. In this study, biochar was produced by pyrolysis at 300, 500 or 700 °C for 1 h, and hydrochar was produced by hydrothermal carbonization (HTC) at 140, 160, 180 or 200 °C for 4 h. Proximate analyses show that the biochar has a higher carbon stability and is possibly suitable for carbon sequestration, while the hydrochar contains more labile carbon structures. The ultimate analysis indicates that the surface hydrophobicity is in the order of: biochar > hydrochar > FS. The phytotoxicity tests indicate their positive effects on germination of wheat seeds. This study provides a new treatment to reuse numerous FS and put forward the possible applications of its carbonaceous products, which is expected to facilitate a circular economy and realize the zero-waste target.
Collapse
Affiliation(s)
- Yunhui Zhang
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore, Singapore; College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China
| | - Junde Qin
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore, Singapore
| | - Yaolin Yi
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore, Singapore.
| |
Collapse
|
14
|
Li J, Lin F, Li K, Zheng F, Yan B, Che L, Tian W, Chen G, Yoshikawa K. A critical review on energy recovery and non-hazardous disposal of oily sludge from petroleum industry by pyrolysis. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124706. [PMID: 33418275 DOI: 10.1016/j.jhazmat.2020.124706] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/11/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
This review systematically reports the pyrolysis of oily sludge (OS) from petroleum industry in regards to its dual features of the energy recovery potential and the environmental risks. The petroleum hydrocarbons are the nonbiodegradable fractions in OS that possess hazardous properties, i.e. ignitability and toxicity. Besides, complicated hazardous elements (i.e. N, S and Cl) and heavy metals inherently existing in OS further aggravate the environmental risks. However, the high oil content and heating value of OS contribute to its huge energy resource potential. Considering the energy demand and the environmental pressure, the ultimate purposes of the OS management are to enhance the oil recovery efficiency to minimize the oil content as well as to stabilize the hazardous elements and heavy metals into the solid residue. Among various OS management technologies, pyrolysis is the most suitable approach to reach both targets. In this review paper, the pyrolysis principle, the kinetics and the product distribution in three-phases are discussed firstly. Then the effects of operating parameters of the pyrolysis process on the quality and the application potential of the three-phase products, as well as the hazardous element distribution are discussed. To further solve the dominant concerns, such as the oil content in the solid residue, the pyrolytic oil quality and the migration of hazardous elements and heavy metals, the potentials of the catalytic pyrolysis and the co-pyrolysis with additives are also summarized. Also, the typical pyrolysis reactors are then presented. From the perspective of the energy efficiency and the non-hazardous disposal, the integrated technology combining the pyrolysis and the combustion for the OS management is recommended. Finally, the remaining challenges of OS pyrolysis encountered in the research and the industrial application are discussed and the related outlooks are itemized.
Collapse
Affiliation(s)
- Jiantao Li
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China.
| | - Kai Li
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Fa Zheng
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Lei Che
- School of Engineering, Huzhou University, Huzhou 313000, PR China
| | - Wangyang Tian
- Zhejiang Eco Environmental Technology Co. LTD, Huzhou 313000, PR China
| | - Guanyi Chen
- School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, PR China
| | - Kunio Yoshikawa
- Zhejiang Eco Environmental Technology Co. LTD, Huzhou 313000, PR China
| |
Collapse
|
15
|
Fan X, Zhang J, Xie Y, Xu D, Liu Y, Liu J, Hou J. Biochar produced from the co-pyrolysis of sewage sludge and waste tires for cadmium and tetracycline adsorption from water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:1429-1445. [PMID: 33767048 DOI: 10.2166/wst.2021.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Application of sewage sludge biochar as an adsorbent for pollutant removal has obtained special attention due to their low cost and surface functionality. In this research, sludge-tire composite biochar (STB) was successfully prepared through co-pyrolysis at 300, 500 and 700 °C, respectively. Cadmium (Cd) and tetracycline (TC) were selected as the target pollutant. The results indicated that STB has the highest surface area (49.71 m2/g), more inorganic minerals (Kaolinite) as well as relatively stable physicochemical properties with 10% tire particles (TP) at 700 °C. The adsorption results indicated that the pseudo-second-order equation and Langmuir isotherm model could better describe the adsorption of Cd2+ and TC by STB. The maximum adsorption capacity of Cd2+ and TC was 50.25 mg/g and 90.09 mg/g, respectively. The main mechanism of the adsorption process of STB for Cd mainly involves anion binding adsorption and ion exchange. The main mechanism of the adsorption process of STB for TC mainly involves complexation and cation exchange. The present study could set a scientific foundation for further research on the recycle of sewage sludge and tires.
Collapse
Affiliation(s)
- Xiulei Fan
- Key Laboratory of Industrial Pollution Control and Resource Reuse of Jiangsu Province, College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China E-mail:
| | - Jiajun Zhang
- Key Laboratory of Industrial Pollution Control and Resource Reuse of Jiangsu Province, College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China E-mail:
| | - Ya Xie
- Key Laboratory of Industrial Pollution Control and Resource Reuse of Jiangsu Province, College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China E-mail:
| | - Dezhi Xu
- Key Laboratory of Industrial Pollution Control and Resource Reuse of Jiangsu Province, College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China E-mail:
| | - Yu Liu
- Key Laboratory of Industrial Pollution Control and Resource Reuse of Jiangsu Province, College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China E-mail:
| | - Jiaqiang Liu
- Key Laboratory of Industrial Pollution Control and Resource Reuse of Jiangsu Province, College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China E-mail:
| | - Jun Hou
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| |
Collapse
|
16
|
Phillip E, Khoo KS, Yusof MAW, Abdel Rahman RO. Assessment of POFA -Cementitious material as backfill barrier in DSRS borehole disposal: 226Ra confinement. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 280:111703. [PMID: 33288318 DOI: 10.1016/j.jenvman.2020.111703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 11/05/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Disused Sealed Radioactive Sources (DSRS) borehole disposal is an innovative concept recommended by international atomic energy agency (IAEA) to improve the safety and security of the management end point for these sources. A green application of Palm Oil Fuel Ash (POFA) as a supplementary material for cementitious backfill barrier in DSRS borehole disposal facility is proposed. Samples with up to 50% POFA replacement complied with the mechanical and hydraulic performance requirements for backfill barriers in retrievable radioactive waste disposal facilities. The structures of one year old OPC and optimum OPC-POFA cement backfills were evaluated using FESEM, XRD, EDXRF, BET, and TGA and their 226 Ra confinement performances were assessed. 30% POFA replacement improved the geochemical conditions by reducing competitive Ca2+ release into the disposal environment. It enhanced 226Ra confinement performance independently on the amount of water intrusion or releases below 2% of 1 Ci source. The improved performance is attributed to the higher fraction of active sites of OPC-POFA backfill compared to that of OPC backfill. 226Ra sorption onto C-S-H is irreversible, spontaneous, endothermic, and independent on the degree of the surface filling. The provided experimental data and theoretical analysis proved the feasibility of this green use of POFA in reducing the radiological hazard of 226Ra.
Collapse
Affiliation(s)
- E Phillip
- Department of Applied Physics, Faculty of Science and Technology, The National University of Malaysia (UKM), Bangi, Selangor, Malaysia; Nuclear Malaysia, Bangi, Selangor, Malaysia
| | - K S Khoo
- Department of Applied Physics, Faculty of Science and Technology, The National University of Malaysia (UKM), Bangi, Selangor, Malaysia
| | | | - R O Abdel Rahman
- Hot Laboratory Center, Atomic Energy Authority of Egypt, 13759, Cairo, Egypt.
| |
Collapse
|
17
|
Qin L, Wu Y, Hou Z, Jiang E. Influence of biomass components, temperature and pressure on the pyrolysis behavior and biochar properties of pine nut shells. BIORESOURCE TECHNOLOGY 2020; 313:123682. [PMID: 32585452 DOI: 10.1016/j.biortech.2020.123682] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/10/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
The aim of this work was to compare the yields, proximate composition, structure and surface morphology of biochar derived from lignin, cellulose, hemicellulose and pine nut shell (PNS) at 400-700 ℃. PNS biochars obtained at different pyrolysis pressures in the range of 0.1-2.0 MPa were also studied. The results indicate that the interactions of lignin, cellulose and hemicellulose have smaller effects on the ash content, yield and higher heating value (HHV) of the biochar than they do on the fixed carbon and volatile matter contents. Increasing the pyrolysis temperature improves the HHV of the biochar, and increasing the pyrolysis pressure enhances the biochar yield, surface functional groups and combustion characteristics. The kinetic data for Pb2+ adsorption are best fitted by a pseudo-second-order model, indicating a chemisorption-controlled process. The PNSB550 and PNSB1.0 data are optimally fit by the Freundlich and Langmuir models, respectively. The maximum Pb2+ adsorption capacity is 237.3 mg/g.
Collapse
Affiliation(s)
- Liyuan Qin
- College of Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Yang Wu
- College of Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Zhiwei Hou
- College of Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Enchen Jiang
- College of Engineering, Northeast Agricultural University, Harbin 150030, China; College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
18
|
Omidi AH, Cheraghi M, Lorestani B, Sobhanardakani S, Jafari A. The biochars prepared from cinnamon and cannabis as nature-friendly adsorbents for removal of Cd(II) ions from aqueous solutions. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2954-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
19
|
Simonescu CM, Lavric V, Musina A, Antonescu OM, Culita DC, Marinescu V, Tardei C, Oprea O, Pandele AM. Experimental and modeling of cadmium ions removal by chelating resins. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112973] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
20
|
Zhang P, Zhang X, Li Y, Han L. Influence of pyrolysis temperature on chemical speciation, leaching ability, and environmental risk of heavy metals in biochar derived from cow manure. BIORESOURCE TECHNOLOGY 2020; 302:122850. [PMID: 32007849 DOI: 10.1016/j.biortech.2020.122850] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/16/2020] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
This study analyzed the chemical speciation, leaching ability, and environmental risk of heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn) in cow manure biochar (CMBC) pyrolyzed at various temperatures. The total content, chemical speciation, and leaching ability of the heavy metals were determined through microwave digestion, modified BCR three-step sequential extraction procedure, and leaching solution systems (TCLP, distilled water, and SPLP). The risk assessment code, Muller geo-accumulation index, potential ecological risk index, and germination index were used to evaluate the environmental safety and ecotoxicity of heavy metals. Significant differences were observed in the physicochemical properties of CMBCs. The heavy metal contents in CMBCs were higher than those in CM. The bioavailable fraction of heavy metals was transformed into a relatively stable fraction with increasing pyrolysis temperature. Furthermore, the potential risks and ecotoxicity of biochar were reduced, thus improving environmental safety. The study results provide important data for biochar applications.
Collapse
Affiliation(s)
- Peizhen Zhang
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Xiaoxiao Zhang
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Yanfei Li
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Lujia Han
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Box 191, Beijing 100083, China.
| |
Collapse
|
21
|
Liu J, Cheng W, Yang X, Bao Y. Modification of biochar with silicon by one-step sintering and understanding of adsorption mechanism on copper ions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 704:135252. [PMID: 31831228 DOI: 10.1016/j.scitotenv.2019.135252] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/09/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
Novel salt-based biochar was prepared by loading silicon (Si) on cornstalk biomass with "one-step sintering" technique. Manganese (Mn) was also used to modify biochar with the same method as a control. Surface morphology, elemental composition, crystal structure and surface area of "salt-based biochars" were analyzed by SEM + EDS, XRD, FTIR and BET, and the effects of the dosage of absorbent and pH of solution on the adsorption process were explored. Si and Mn could be successfully attached on the biochar surface as oxide forms. SiBC exhibited a dense and agglomerated surface, while MnBC was a kind of porous and rough materials. The optimal adsorption capability would realize when putting 2 g/L of biochar composites at pH = 5-6. Adsorption isotherms, adsorption kinetics, combine with FTIR and XPS were carried out to help to elaborate the adsorption mechanisms. The maximum adsorption capacity of Cu (II) was 152.61 mg/g on SiBC and it could reach at 97% of removal rate within 10 min when the concentration was 100 mg/L, while MnBC had to take 500 min to achieve the same adsorption effect, and reached 187.76 mg/g of maximum adsorption capacity. Langmuir model and pseudo-second-order model were more suitable for both SiBC and MnBC, which meant the monolayer and chemical adsorption were dominated. Surface complexation and precipitation was attributed to SiBC. Specialistic adsorption, ion exchange and intra-particle diffusion was put it down to MnBC.
Collapse
Affiliation(s)
- Juan Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Wanyi Cheng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Xiaoyu Yang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yongchao Bao
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
| |
Collapse
|
22
|
Cheng Y, Wang K, Tu B, Xue S, Deng J, Tao H. Adsorption of divalent cadmium by calcified iron-embedded carbon beads. RSC Adv 2020; 10:6277-6286. [PMID: 35495986 PMCID: PMC9049697 DOI: 10.1039/c9ra10309k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 01/27/2020] [Indexed: 11/29/2022] Open
Abstract
A novel iron-embedded carbon bead was prepared by the calcination of a calcium alginate gel bead mixed with iron nanoparticles coated by polydopamine. The prepared iron-embedded carbon bead was characterized by infrared spectrum analysis, X-ray diffraction, Raman spectroscopy, vibrating sample magnetometry, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. It was discovered that the novel structure efficaciously prevented the agglomeration of iron nanoparticles. Additionally, the effects of dose, pH, exposure time, temperature and initial concentration on the adsorption of Cd(ii) were studied, and the reusability of the material was analyzed. Fe/SA-C showed high Cd(ii) removal capability (220.3, 225.7, 240.8 mg g−1 at 288, 298, 308 K), easy recoverability and high stability. In addition, some slightly different interpretations of the adsorption mechanism are given. This study clearly revealed that Fe/SA-C has potential application in the removal of Cd(ii). The material structure could prevent Fe nanoparticle agglomeration during synthesis and maintain Fe stability during adsorption. Fe/SA-C had a superior adsorption property and easy recoverability.![]()
Collapse
Affiliation(s)
- Yalin Cheng
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, School of Environmental Science and Engineering, Anhui Normal University Wuhu 241000 Anhui China
| | - Kaiqian Wang
- Anhui Laboratory of Molecule-Based Materials, School of Chemistry and Materials Science, Anhui Normal University Wuhu 241000 Anhui China
| | - Biyang Tu
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, School of Environmental Science and Engineering, Anhui Normal University Wuhu 241000 Anhui China
| | - Shan Xue
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, School of Environmental Science and Engineering, Anhui Normal University Wuhu 241000 Anhui China
| | - Jiahui Deng
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, School of Environmental Science and Engineering, Anhui Normal University Wuhu 241000 Anhui China
| | - Haisheng Tao
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, School of Environmental Science and Engineering, Anhui Normal University Wuhu 241000 Anhui China .,Anhui Laboratory of Molecule-Based Materials, School of Chemistry and Materials Science, Anhui Normal University Wuhu 241000 Anhui China
| |
Collapse
|
23
|
Younes AA, Abdulhady YA, Shahat NS, El-Din El-Dars FMS. Removal of cadmium ions from wastewaters using corn cobs supporting nano-zero valent iron. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1708109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ahmed A. Younes
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | - Yasser A.M. Abdulhady
- Water Treatment & Desalination Unit, Hydrogeochemistry Department, Desert Research Center, Cairo, Egypt
| | - Norhan S. Shahat
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | | |
Collapse
|
24
|
Optimization of biochar preparation from the stem of Eichhornia crassipes using response surface methodology on adsorption of Cd 2. Sci Rep 2019; 9:17538. [PMID: 31772278 PMCID: PMC6879636 DOI: 10.1038/s41598-019-54105-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/09/2019] [Indexed: 01/23/2023] Open
Abstract
In this study, preparation of Eichhornia crassipes stem biochar (ECSBC) was optimized and applied for the removal of Cd2+ from aqueous solution. To obtain the best adsorption capacity of ECSBC, the response surface methodology (RSM) was used to optimize the preparation conditions of ECSBC (OECSBC). The interactions among heating time (X1), heating temperature (X2) and heating rate (X3) were designed by Box-Behnken Design (BBD) experiments. The software gave seventeen runs experiment within the optimal conditions towards two response variables (removal rate and adsorption capacity for Cd2+). The results showed that the mathematical model could fit the experimental data very well and the significance of the influence factors followed the order as heating temperature (X2) > heating rate (X3) > heating time (X1), and the influence of interaction term is: X1 and X2 (heating time and heating temperature) > X2 and X3 (heating temperature and heating rate) > X1 and X3 (heating time and heating rate). Based on the analysis of variance and the method of numerical expected function, the optimal conditions were heating time of 2.42 h, heating temperature of 393 °C, and heating rate of 15.56 °C/min. Under the optimum conditions, the predicted the maximum removal rate and adsorption capacity were 85.2724% and 21.168 mg/g, respectively, and the experimental value of removal rate and adsorption capacity for Cd2+ were 80.70% and 20.175 mg/g, respectively, the deviation from the predicted value were 5.36% and 4.69%. The results confirmed that the RSM can optimize the preparation conditions of ECSBC, and the adsorption capacity of OECSB was improved.
Collapse
|
25
|
Cheng Y, Wang K, Tu B, Xia Y, Zhang J, Xue S, Tao H. High‐Temperature Reduction of Calcium Alginate to Carbon Sphere for Efficient Removal of Bivalent Cadmium. ChemistrySelect 2019. [DOI: 10.1002/slct.201902329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yalin Cheng
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and RemediationSchool of Environmental Science and EngineeringAnhui Normal University Wuhu 241000, Anhui China
| | - Kaiqian Wang
- Anhui Laboratory of Molecule-Based Materials, School of Chemistry and Materials ScienceAnhui Normal University, Wuhu 241000 Anhui China
| | - Biyang Tu
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and RemediationSchool of Environmental Science and EngineeringAnhui Normal University Wuhu 241000, Anhui China
| | - Yang Xia
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and RemediationSchool of Environmental Science and EngineeringAnhui Normal University Wuhu 241000, Anhui China
| | - Jiaqian Zhang
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and RemediationSchool of Environmental Science and EngineeringAnhui Normal University Wuhu 241000, Anhui China
| | - Shan Xue
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and RemediationSchool of Environmental Science and EngineeringAnhui Normal University Wuhu 241000, Anhui China
| | - Haisheng Tao
- Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and RemediationSchool of Environmental Science and EngineeringAnhui Normal University Wuhu 241000, Anhui China
- Anhui Laboratory of Molecule-Based Materials, School of Chemistry and Materials ScienceAnhui Normal University, Wuhu 241000 Anhui China
| |
Collapse
|
26
|
Hoslett J, Ghazal H, Ahmad D, Jouhara H. Removal of copper ions from aqueous solution using low temperature biochar derived from the pyrolysis of municipal solid waste. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 673:777-789. [PMID: 31003106 DOI: 10.1016/j.scitotenv.2019.04.085] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/01/2019] [Accepted: 04/06/2019] [Indexed: 06/09/2023]
Abstract
Sustainable methods to produce filter materials are needed to remove a variety of pollutants found in water including organic compounds, heavy metals, and other harmful inorganic and biological contaminants. This study focuses on the removal of Cu(II) from copper aqueous solutions using non-activated char derived from the pyrolysis of mixed municipal discarded materials (MMDM) using a new heat pipe-based pyrolysis reactor. Adsorption experiments were conducted by adding the char to copper solutions of varying concentration (50-250 mg/L) at a constant temperature of 30 °C. The effect of pH on copper adsorption onto the char was also investigated in the range of pH 3 to 6. Copper removal using the char was found to be heavily dependent on pH, adsorption was observed to decrease below a pH of 4.5. However, the initial copper concentration had a little effect on the sorption of copper at high concentration solutions (above 100 mg/L). Overall, the biochar showed an effective copper adsorption capacity (4-5 mg/g) when using copper solutions with a concentration below100 mg/L and pH >4.5. Copper removal using the char tended to follow the pseudo second order kinetic model. Langmuir isothermal model was shown to be the closest fitting isotherm using the linearized Langmuir equation. However, the variety of feedstock used to produce the char led to a variation in results compared to other studies of more specific feedstocks.
Collapse
Affiliation(s)
- John Hoslett
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK
| | - Heba Ghazal
- School of Pharmacy and Chemistry, Kingston University, Kingston Upon Thames KT1 2EE, UK
| | - Darem Ahmad
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK
| | - Hussam Jouhara
- College of Engineering, Design and Physical Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK.
| |
Collapse
|