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Electrochemical processes for the environmental remediation of toxic Cr(VI): A review
Jin, Wei; Du, Hao; Zheng, Shili; Zhang, Yi

Hexavalent chromium Cr(VI) is extremely toxic and classified as one of the 17 chemicals posing the greatest threat to humans. Large amounts of Cr(VI) compounds are directly or indirectly discharged into the environment, therefore considerable efforts have been made to control the Cr(VI) concentration below the recommended level. It has been demonstrated that electrochemical technique is one of the most efficient and environmental benign approach for the Cr(VI) removal. This review aims at recent advances in electrochemical technology for practical Cr(VI) treatment applications. By using the "clean reagent" of electron, Cr(VI) can be completely eliminated or separated via different electrochemical techniques such as electrocoagulation, electrochemical reduction, electrodialysis, electro-electrodialysis and electrodeionization. Besides, the mechanism and performance of different strategies are commented and compared. The treatment process is largely dependent on variables such as pH, electrode materials, cell configuration and techniques integration. Furthermore, the remained limitation and challenges for the electrochemical Cr(VI) remediation are also discussed. (C) 2016 Elsevier Ltd. All rights reserved.

KeywordHexavalent Chromium Electrocoagulation Electrochemical Reduction Electrodialysis Electrodeionization
Subject AreaElectrochemistry ; Electrochemistry
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordWaste-water Treatment ; Microbial Fuel-cells ; Hexavalent Chromium Reduction ; Ion-exchange Membranes ; Aqueous-solutions ; Cr(Iii) Oxidation ; Drinking-water ; Koh Solutions ; Removal ; Electrocoagulation
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
Funding OrganizationNational Basic Research Program of China (973 Program)(2013CB632601) ; Hundred Talents Program
WOS IDWOS:000371143200121
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Document Type期刊论文
Corresponding AuthorJin, Wei
AffiliationChinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Jin, Wei,Du, Hao,Zheng, Shili,et al. Electrochemical processes for the environmental remediation of toxic Cr(VI): A review[J]. ELECTROCHIMICA ACTA,2016,191(FEB):1044-1055.
APA Jin, Wei,Du, Hao,Zheng, Shili,&Zhang, Yi.(2016).Electrochemical processes for the environmental remediation of toxic Cr(VI): A review.ELECTROCHIMICA ACTA,191(FEB),1044-1055.
MLA Jin, Wei,et al."Electrochemical processes for the environmental remediation of toxic Cr(VI): A review".ELECTROCHIMICA ACTA 191.FEB(2016):1044-1055.
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