1
|
Ullah H, Lun L, Rashid A, Zada N, Chen B, Shahab A, Li P, Ali MU, Lin S, Wong MH. A critical analysis of sources, pollution, and remediation of selenium, an emerging contaminant. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:1359-1389. [PMID: 35972610 PMCID: PMC9379879 DOI: 10.1007/s10653-022-01354-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 07/09/2022] [Indexed: 06/10/2023]
Abstract
Selenium (Se) is an essential metalloid and is categorized as emerging anthropogenic contaminant released to the environment. The rise of Se release into the environment has raised concern about its bioaccumulation, toxicity, and potential to cause serious damages to aquatic and terrestrial ecosystem. Therefore, it is extremely important to monitor Se level in environment on a regular basis. Understanding Se release, anthropogenic sources, and environmental behavior is critical for developing an effective Se containment strategy. The ongoing efforts of Se remediation have mostly emphasized monitoring and remediation as an independent topics of research. However, our paper has integrated both by explaining the attributes of monitoring on effective scale followed by a candid review of widespread technological options available with specific focus on Se removal from environmental media. Another novel approach demonstrated in the article is the presentation of an overwhelming evidence of limitations that various researchers are confronted with to overcome achieving effective remediation. Furthermore, we followed a holistic approach to discuss ways to remediate Se for cleaner environment especially related to introducing weak magnetic field for ZVI reactivity enhancement. We linked this phenomenal process to electrokinetics and presented convincing facts in support of Se remediation, which has led to emerge 'membrane technology', as another viable option for remediation. Hence, an interesting, innovative and future oriented review is presented, which will undoubtedly seek attention from global researchers.
Collapse
Affiliation(s)
- Habib Ullah
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058 Zhejiang China
- Zhejiang Provincial Key Laboratory of Organic Pollutant Process and Control, Zhejiang University, Hangzhou, 310058 Zhejiang China
| | - Lu Lun
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655 China
| | - Audil Rashid
- Faculty of Sciences, Department of Botany, University of Gujrat, Gujrat, 50700 Pakistan
| | - Noor Zada
- Department of Chemistry, Government Post Graduate College, Lower Dir, Timergara, 18300 Pakistan
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou, 310058 Zhejiang China
- Zhejiang Provincial Key Laboratory of Organic Pollutant Process and Control, Zhejiang University, Hangzhou, 310058 Zhejiang China
| | - Asfandyar Shahab
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Ping Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Science, Guiyang, 550081 China
- CAS Center for Excellence in Quaternary Science and Global Change in XI’an, Xi’an, 710061 China
| | - Muhammad Ubaid Ali
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Science, Guiyang, 550081 China
- CAS Center for Excellence in Quaternary Science and Global Change in XI’an, Xi’an, 710061 China
| | - Siyi Lin
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, 999077 China
| | - Ming Hung Wong
- Consortium On Health, Environment, Education, and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
| |
Collapse
|
2
|
Sun F, Zhu Y, Liu X, Chi Z. Highly efficient removal of Se(IV) using reduced graphene oxide-supported nanoscale zero-valent iron (nZVI/rGO): selenium removal mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:27560-27569. [PMID: 36385336 DOI: 10.1007/s11356-022-24226-8] [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: 07/25/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Se(IV) removal using nanoscale zero-valent iron (nZVI) has been extensively studied. Still, the synergistic removal of Se(IV) by reduced graphene oxide-supported nanoscale zero-valent iron (nZVI/rGO) has not been reported. In this study, nZVI/rGO was successfully synthesized for Se(IV) removal from wastewater. The effects of different environmental conditions (load ratio, dosage, initial pH) on Se(IV) removal by nZVI/rGO were investigated. When the load ratio is 10%, the dosage is 0.3 g/L, the initial pH is 3, and the removal rate is 99%. The adsorption isotherm and kinetics accorded with the Langmuir isotherm and first-order kinetics models (R2 > 0.99). The fitted maximum adsorption capacity reached up to 173.53 mg/g. NZVI/rGo and Se(IV) is a spontaneous endothermic reaction (△G < 0, △H > 0) and is characterized by EDS, XRD, and XPS before and after the reaction, to further clarify the reaction mechanism. The XPS narrow spectrum analysis suggested that Se(IV) was reduced to elemental selenium (Se(0)), while the intermediate Fe(II) was oxidized to form hydroxide precipitation. Therefore, nZVI/rGO was favored for Se-contaminated wastewater remediation.
Collapse
Affiliation(s)
- Feiyang Sun
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China
| | - Yuhuan Zhu
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China
| | - Xinyang Liu
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China
| | - Zifang Chi
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, People's Republic of China.
| |
Collapse
|
3
|
Yu H, Xuan C, Chen N, Zhang Q, Pan B. Reductive ethylenediamine group immobilized in hybrid Pd-based nanocomposite for efficiently sequestrating selenate. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
4
|
Wang S, Yin W, Bu H, Zeng W, Li P, Zheng X, Chiang P, Wu J. A facile modification of cation exchange resin by nano-sized goethite for enhanced Cr(VI) removal from water. ENVIRONMENTAL TECHNOLOGY 2022; 43:1833-1842. [PMID: 33225859 DOI: 10.1080/09593330.2020.1855257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 11/14/2020] [Indexed: 06/11/2023]
Abstract
A novel macroporous strong acidic cation exchange resin (D001) modified by nano-sized goethite (nFeOOH@D001) was fabricated by using a facile ethanol dispersion and impregnation method, and its efficiency for Cr(VI) removal was tested thereafter. Due to the dispersing effect of ethanol, FeOOH particles of 20-150 nm were coated on the D001 surfaces. The nFeOOH@D001 obtained a Cr(VI) removal efficiency and capacity of 80.2% and 7.4 mg/g respectively, 5 times and 8 times higher than that of the pristine D001. The Cr(VI) removal by nFeOOH@D001 followed the pseudo second-order kinetics and the Langmuir adsorption model. Column experiments also demonstrated that the nFeOOH@D001 exhibited a much better ability to remove Cr(VI) as compared to the D001. Additionally, the nFeOOH@D001 showed a potential for reusability and renewability. The adsorbed nFeOOH@D001 could be easily desorbed by 0.1 M acetic acid and a reuse efficiency of 92.7% could be maintained after 4 desorption-adsorption cycles. The used nFeOOH@D001 could be eluted by 0.1 M HCl to remove nFeOOH, and the renewed D001 could be recoated by nFeOOH and achieved a regeneration rate of 97.8% for Cr(VI) removal. The above results indicated that nano-sized goethite modification is a promising method to endow D001 with the ability to remove Cr(VI) from water.
Collapse
Affiliation(s)
- Siqiao Wang
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Weizhao Yin
- School of Environment, Jinan University, Guangzhou, People's Republic of China
| | - Huaitian Bu
- Department of Materials and Nanotechnology, SINTEF Industry, Oslo, Norway
| | - Weilong Zeng
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Ping Li
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Xiangyu Zheng
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Penchi Chiang
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - Jinhua Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
- The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou, People's Republic of China
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, People's Republic of China
| |
Collapse
|
5
|
Zhou Y, Li X. Green synthesis of modified polyethylene packing supported tea polyphenols-NZVI for nitrate removal from wastewater: Characterization and mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150596. [PMID: 34592281 DOI: 10.1016/j.scitotenv.2021.150596] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/15/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Nano-zero-valent iron (NZVI), as an electron donor, performed excellence in the reduction and remove of nitrate. However, the easy agglomeration and poor antioxidation of NZVI declined the nitrate removal and limited the application in the field of wastewater treatment. Herein, a novel composite packing of tea polyphenol, NZVI and modified polyethylene carrier (TP-NZVI/PE) was prepared and characterized, the removal efficiency of nitrate was verified, and the preliminary removal mechanism was finally investigated. The results showed that the maximum iron loading on TP-NZVI/PE composite achieved under 50 °C, pH of 5.0, 4.0 g/L of Fe2+, and 7.2 g/L of TP, respectively, with 3.51 ± 0.12 mg/g. NZVI presented satisfactory antioxidation and anti-agglomeration via TP encapsulation. TP encapsulation of TP-NZVI/PE composite was easily degraded by microorganisms and NZVI was exposed to nitrate during wastewater treatment, which made the reduction of nitrate possible. The nitrate removal efficiency of TP-NZVI/PE composite with microorganism was 79.88 ± 0.17%, higher three times than that of TP-NZVI/PE (25.54 ± 0.21%). The oxidized NZVI was transformed to Fe2+/Fe3+, which were prone to adsorb nitrate and then co-precipitate. It was favorable for further removal of nitrate. Results suggested a novel approach for fast and eco-friendly preparation and efficient application of NZVI.
Collapse
Affiliation(s)
- Yu Zhou
- Laboratory of Environmental Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi 214122, PR China; Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, PR China
| | - Xiufen Li
- Laboratory of Environmental Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi 214122, PR China; Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, PR China.
| |
Collapse
|
6
|
Filip J, Vinter Š, Čechová E, Sotolářová J. Materials interacting with inorganic selenium from the perspective of electrochemical sensing. Analyst 2021; 146:6394-6415. [PMID: 34596173 DOI: 10.1039/d1an00677k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Inorganic selenium, the most common form of harmful selenium in the environment, can be determined using electrochemical sensors, which are compact, fast, reliable and easy-to-operate devices. Despite progress in this area, there is still significant room for developing high-performance selenium electrochemical sensors. To achieve this, one should take into account (i) the electrochemical process that selenium undergoes on the electrode; (ii) the valence state of selenium species in the sample and (iii) modification of the sensor surface by a material with high affinity to selenium. The goal of this review is to provide a knowledge base for these issues. After the Introduction section, mechanisms and principles of the electrochemical reduction of selenium are introduced, followed by a section introducing the modification of electrodes with materials interacting with selenium and a section dedicated to speciation methods, including the reduction of non-detectable Se(VI) to detectable Se(IV). In the following sections, the main types of materials (metallic, polymers, hybrid (nano)materials…) interacting with inorganic selenium (mostly absorbents) are reviewed to show the diversity of properties that may be endowed to sensors if the materials were to be used for the modification of electrodes. These features for the main material categories are outlined in the conclusion section, where it is stated that the engineered polymers may be the most promising modifiers.
Collapse
Affiliation(s)
- Jaroslav Filip
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Štěpán Vinter
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Erika Čechová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| | - Jitka Sotolářová
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlin, Nad Ovčírnou 3685, Zlín 760 01, Czechia.
| |
Collapse
|
7
|
Wu J, Zhao J, Li H, Miao L, Hou J, Xing B. Simultaneous Removal of Selenite and Selenate by Nanosized Zerovalent Iron in Anoxic Systems: The Overlooked Role of Selenite. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:6299-6308. [PMID: 33843193 DOI: 10.1021/acs.est.0c08142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The application of nanosized zerovalent iron (nZVI) for reductive immobilization of selenite (Se(IV)) or selenate (Se(VI)) alone has been extensively investigated. However, as the predominant species, Se(IV) and Se(VI) usually coexist in the environment. Thus, it is essential to remove both species simultaneously in the solution by nZVI. Negligible Se(VI) removal (∼7%) by nZVI was observed in the absence of Se(IV). In contrast, the Se(VI) was completely removed in the presence of Se(IV), and the removal rate and electron selectivity of Se(VI) increased from 0.12 ± 0.01 to 0.29 ± 0.02 h-1 and from 1% to 4.5%, respectively, as the Se(IV) concentration increased from 0.05 to 0.20 mM. Se(IV) was rapidly removed by nZVI, and Se(VI) exerted minor influence on Se(IV) removal. Se(IV) promoted the generation of corrosion products that were mainly composed of magnetite (26%) and lepidocrocite (67%) based on the Fe K-edge XANES spectra and k3-weighted EXAFS analysis. Fe(II) released during the Se(IV) reduction was not the main reductant for Se(VI) but accelerated the transformation of F(0) to magnetite and lepidocrocite. The formation of lepidocrocite contributed to the enrichment of Se(VI) on the nZVI surface, and magnetite promoted electron transfer from Fe(0) to Se(VI). This study demonstrated that Se(IV) acted as an oxidant to activate nZVI, thus improving the reactivity of nZVI toward Se(VI), which displays a potential application of nZVI in the remediation of Se(IV)- and Se(VI)-containing water.
Collapse
Affiliation(s)
- Jun Wu
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Jian Zhao
- Institute of Coastal Environmental Pollution Control, and Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Hao Li
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Lingzhan Miao
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Jun Hou
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| |
Collapse
|
8
|
Lu J, Wen Z, Zhang Y, Cheng G, Xu R, Gong X, Wang X, Chen R. New insights on nanostructure of ordered mesoporous FeMn bimetal oxides (OMFMs) by a novel inverse micelle method and their superior arsenic sequestration performance: Effect of calcination temperature and role of Fe/Mn oxides. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143163. [PMID: 33131836 DOI: 10.1016/j.scitotenv.2020.143163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
A series of ordered mesoporous FeMn bimetal oxides (OMFMs) were fabricated by using a novel inverse micelle method, and the texture, nanostructure and interface chemistry properties of OMFMs were closely correlated to the calcination temperature. Due to the amorphous regular inner-connected nanostructure and bimetallic synergistic effect, the obtained OMFMs exhibited superior arsenic sequestration performance than pure mesoporous Fe oxides (PMF) and Mn oxides (PMM). The optimum ratio of Fe/Mn and calcination temperature for arsenic removal was 3/1 and 350 °C (OMFM-3), and the maximum As(III) and As(V) adsorption capacities of OMFM-3 were 174.59 and 134.58 mg/g, respectively. Solution pH value negligibly affected the uptake of arsenic (ranged from 3.0 to 7.0), while SiO32-/PO43- ions and humic acid (HA) displayed significant inhibitory effect on arsenic removal by OMFM-3. According to the mechanism of arsenic removal, which simultaneously analyzed the arsenic redox transformation in aqueous phase and on solid phase interface, it was concluded that manganese oxides in OMFM-3 mainly played the role as a remarkable As(III) oxidant in water, whereas iron oxides dominantly acted as an excellent arsenic species adsorbent. Finally, the prominent arsenic sequestration behavior and performance in surface water suggested that OMFM-3 could be a promising and hopeful candidate for arsenic-contaminated (especially As(III)) surface water and groundwater remediation and treatment.
Collapse
Affiliation(s)
- Jun Lu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China
| | - Zhipan Wen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China.
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - Gang Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China
| | - Rui Xu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China
| | - Xiaohu Gong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China
| | - Xin Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China
| | - Rong Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China
| |
Collapse
|
9
|
Li J, Sun Y, Zhang X, Guan X. Weak magnetic field enables high selectivity of zerovalent iron toward metalloid oxyanions under aerobic conditions. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123330. [PMID: 32947724 DOI: 10.1016/j.jhazmat.2020.123330] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/10/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
For water treatment/remediation by zerovalent iron (ZVI), of particular concern is its selectivity toward contaminants over natural non-targets (e.g., O2 and H2O/H+). Hence, the effects of weak magnetic field (WMF) on the selectivity of ZVI toward metalloid oxyanions (i.e., As(III), As(V), Sb(III), Sb(V), Se(IV) and Se(VI)) were in-depth investigated under aerobic conditions. This study unraveled that, despite the electron utilization (EU) of ZVI with and without WMF were almost identical at reaction equilibrium, the application of a WMF could enhance the specific removal capacity (SRC) of ZVI toward metalloid oxyanions from 1.8-19.0 mg/g Fe to 12.6-85.3 mg/g Fe. Particularly, the electron efficiency (EE) of ZVI with WMF for reduction of Se(IV)/Se(VI) were 3.7- to 14.1-fold greater than that without WMF. Since the WMF-induced magnetic gradient force (FΔB) can derive the movement of both Fe2+ and metalloid oxyanions, the subsequent incorporation of metalloid oxyanions with in-situ generated iron oxides can also been mediated synchronously and thus leading to an enhanced SRC of ZVI (also EE for Se(IV) and Se(VI) reduction by ZVI). In general, our findings prove that WMF should be a promising method to promote the selectivity of ZVI for water decontamination under aerobic conditions.
Collapse
Affiliation(s)
- Jinxiang Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Yuankui Sun
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, PR China
| | - Xueying Zhang
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, PR China
| | - Xiaohong Guan
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, PR China.
| |
Collapse
|
10
|
Ishag A, Li Y, Zhang N, Wang H, Guo H, Mei P, Sun Y. Environmental application of emerging zero-valent iron-based materials on removal of radionuclides from the wastewater: A review. ENVIRONMENTAL RESEARCH 2020; 188:109855. [PMID: 32846643 DOI: 10.1016/j.envres.2020.109855] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/31/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
Owing to high surface energy, strong chemical reactivity and large surface area, nanoscale zero-valent iron (nZVI) as a novel emerging material has been extensively utilized in environmental cleanup. Although a lot of reviews regarding the removal of organic contaminants and heavy metals on nZVI are summarized in recent years, the advanced progress concerning the removal of radionuclides on nZVI is still scarce. In this review, we summarized the removal of technetium (Tc), uranium (U), selenium (Se) and other radionuclides on nZVI and nZVI-based composites, then their interaction mechanisms were reviewed in details. This review is crucial for the environmental chemist and material engineer to exploit the actual application of nZVI-based composites as the emerging materials of permeable reactive barrier on the removal of radionuclides from aqueous solutions.
Collapse
Affiliation(s)
- Alhadi Ishag
- College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Ying Li
- College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Ning Zhang
- College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Huihui Wang
- College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Han Guo
- College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Peng Mei
- College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Yubing Sun
- College of Environmental Sciences and Engineering, North China Electric Power University, Beijing, 102206, PR China.
| |
Collapse
|
11
|
Deng Y, Zhang Q, Zhang Q, Zhong Y, Peng P. Arsenate removal from underground water by polystyrene-confined hydrated ferric oxide (HFO) nanoparticles:effect of humic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:6861-6871. [PMID: 31879867 DOI: 10.1007/s11356-019-07282-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Arsenic decontamination from groundwater is an urgent but still challenging task. Polystyrene-based hydrated ferric oxide (denoted as D201-HFO) nanocomposite is a new emerging current adsorbent for efficient arsenate removal in natural waters; the resulting materials can interact with arsenate, mainly driven by inner complexation and static interaction and the existing HA effects on adsorption was well investigated. Results reveals that low concentrations of HA (below 25 mg/L) coexistence led to negligible effects on As(V) removal, but high levels of HA (100 mg/L) exerted outstanding sorption competition to As(V) removal; kinetics results revealed the HA additions brought about the diffusion prolonging and capacity decline, due to the large molecule structure of HA. Column experiments further showed the slight decrease application capacity of 810 BV by HA additions, with satisfactory saturation capacity; significantly, the presence of HA also exerted negligible influences on regeneration performances. All the sorbents with or without HA could be well regenerated by binary alkaline and salt mixture.
Collapse
Affiliation(s)
- Yirong Deng
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
- Guangdong Key Laboratory of Contaminated Sites Environmental Management and Remediation, Guangdong Provincial Academy of Environmental Science, Guangzhou, 510045, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qingjian Zhang
- Technical Center of Qingdao Customs, Qingdao, 266001, China
| | - Qingrui Zhang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water And Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China.
| | - Yin Zhong
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Ping'an Peng
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| |
Collapse
|
12
|
Huang T, Liu L, Zhang S, Xu J. Evaluation of electrokinetics coupled with a reactive barrier of activated carbon loaded with a nanoscale zero-valent iron for selenite removal from contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:104-114. [PMID: 30665105 DOI: 10.1016/j.jhazmat.2019.01.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/09/2019] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
The range between dietary deficient and toxic levels for selenium is quite narrow. In this study, the synergistic effects of electrokinetics (EK) and a permeable reactive barrier (PRB) on the reductive sequestration of Se(IV) oxyanions from spiked soils were investigated in detail. Activated charcoal (AC)-supported Fe(II) and nanoscale zero-valent iron (nZVI) were prepared as the PRB media for use in an electrolyzer. In aqueous equilibrium adsorption tests, the AC-supported nZVI medium had a higher adsorption capacity than that of the other adsorbents. The Se(IV) removal isotherms were well-fitted using the Langmuir model. The Se(IV) removal rates were accurately predicted by both pseudo-first- and pseudo-second-order kinetic models. For the coupled systems, a moderate increase in the number of PRBs and decrease in the PRB thickness in the electrolyzer enhanced the removal and catalytic recovery of Se(IV) from the spiked soil samples. A Se(VI) removal efficiency of approximately 95% and Se(VI) reduction efficiency of 90% were achieved in the optimized electrochemical system. The Se(IV) species were reduced to Se° and FeSe by the AC-supported nZVI regardless of the pH distribution. The experimental results provide guidance for the multichannel recovery of Se from abandoned ore tailings or solid wastes.
Collapse
Affiliation(s)
- Tao Huang
- School of Chemistry and Materials Engineering, Changshu Institute of Technology, 215500, China.
| | - Longfei Liu
- School of Chemistry and Materials Engineering, Changshu Institute of Technology, 215500, China
| | - Shuwen Zhang
- Nuclear Resources Engineering College, University of South China, 421001, China
| | - Jiaojiao Xu
- School of Chemistry and Materials Engineering, Changshu Institute of Technology, 215500, China
| |
Collapse
|
13
|
Application of nZVI and its composites into the treatment of toxic/radioactive metal ions. INTERFACE SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1016/b978-0-08-102727-1.00006-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
14
|
Wang X, Liu H, Shan C, Zhang W, Pan B. A novel combined process for efficient removal of Se(VI) from sulfate-rich water: Sulfite/UV/Fe(III) coagulation. CHEMOSPHERE 2018; 211:867-874. [PMID: 30103142 DOI: 10.1016/j.chemosphere.2018.07.159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 07/23/2018] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Abstract
The efficient removal of Se(VI) from sulfate-rich water is challenging as most reported processes last for hours to days. In this study, a combined sulfite/UV/Fe(III) coagulation process was proposed for efficient Se(VI) removal from sulfate-rich water within a short time (∼1 h). In the presence of sulfate (1000 mg L-1), over 99% of Se(VI) (initially at 10 mg L-1) could be reduced by sulfite (5.0 mM) with a UV dose of 16 J cm-2 (within 20 min) into Se(IV) as the sole observed product. An alkaline pH (>9) was required for the reduction process, which was naturally obtained with the addition of sulfite. Scavenging experiments with N2O and NO3- both indicated that hydrated electrons (eaq-) were responsible for Se(VI) reduction by sulfite/UV. The presence of chloride, sulfate, phosphate, and carbonate (up to 10 mM) showed negligible influence on Se(VI) reduction, whereas nitrate and humic acid inhibited Se(VI) reduction to different extents depending on their concentrations. By Fe(III) coagulation, Se(IV) in the co-presence of sulfite and sulfate was efficiently removed at an OH-/Fe molar ratio of 1.8-2.8. The removal of Se(IV) by Fe(III) coagulation responded insignificantly to chloride, nitrate, or sulfate (up to 10 mM), whereas it was adversely affected at high levels of carbonate (10 mM) and phosphate (1 mM). The combined sulfite/UV/Fe(III) coagulation process was validated for the efficient removal of Se(VI) from synthetic sulfate-rich solution, simulated wastewater, and authentic smelting wastewater (in 1.1 h). The introduced sulfite underwent minor consumption during UV irradiation and was almost (∼90%) removed after coagulation.
Collapse
Affiliation(s)
- Xing Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Hui Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Chao Shan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China.
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| |
Collapse
|
15
|
Shan C, Chen J, Yang Z, Jia H, Guan X, Zhang W, Pan B. Enhanced removal of Se(VI) from water via pre-corrosion of zero-valent iron using H 2O 2/HCl: Effect of solution chemistry and mechanism investigation. WATER RESEARCH 2018; 133:173-181. [PMID: 29407699 DOI: 10.1016/j.watres.2018.01.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/15/2018] [Accepted: 01/17/2018] [Indexed: 06/07/2023]
Abstract
Although the removal of Se(VI) from water by using zero-valent iron (ZVI) is a promising method, passivation of ZVI severely inhibits its performance. To overcome such issue, we proposed an efficient technique to enhance Se(VI) removal via pre-corrosion of ZVI with H2O2/HCl in a short time (15 min). The resultant pcZVI suspension was weakly acidic (pH 4.56) and contained abundant aqueous Fe2+. 57Fe Mössbauer spectroscopy showed that pcZVI mainly consisted of Fe0 (66.2%), hydrated ferric oxide (26.3%), and Fe3O4 (7.5%). Efficient removal of Se(VI) from sulfate-rich solution was achieved by pcZVI compared with ZVI (in the absence and presence of H2O2) and acid-pretreated ZVI. Moreover, the efficient removal of Se(VI) by pcZVI sustained over a broad pH range (3-9) due to its strong buffering power. The presence of chloride, carbonate, nitrate, and common cations (Na+, K+, Ca2+, and Mg2+) posed negligible influence on the removal of Se(VI) by pcZVI, while the inhibitory effect induced by sulfate, silicate, and phosphate indicated the significance of Se(VI) adsorption as a prerequisite step for its removal. The consumption of aqueous Fe2+ was associated with Se(VI) removal, and X-ray absorption near edge structure revealed that the main pathway for Se(VI) removal by pcZVI was a stepwise reduction of Se(VI) to Se(IV) and then Se0 as the dominant final state (78.2%). Moreover, higher electron selectivity of pcZVI was attributed to the enhanced enrichment of Se oxyanions prior to their reduction.
Collapse
Affiliation(s)
- Chao Shan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| | - Jiajia Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Zhe Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Huichao Jia
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Xiaohong Guan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China.
| |
Collapse
|