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Removal of antimony from antimony mine flotation wastewater by electrocoagulation with aluminum electrodes |
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| Authors: | Jing Zhu Fengchang Wu Xiangliang Pan Jianyang Guo and Dongsheng Wen |
| Institution: | 1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences,Guiyang 550002, China. E-mail: gyzhujing@ 163.com;Graduate School of Chinese Academy of Sciences, Beijing 100039, China;College of Chemistry and Chemical Engineering, Caijiaguan Campus, Guizhou University, Guiyang 550003, China 2. State Environmental Protection Key Laboratory for Lake Pollution Control,Chinese Research Academy of Environmental Sciences, Beijing 100012, China 3. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences,Guiyang 550002, China. E-mail: gyzhujing@ 163.com 4. School of Engineering and Materials Science, Queen Mary, University of London, London E1 4NS, UK |
| Abstract: | Antimony (Sb) has received increasing environmental concerns due to its potential toxic and carcinogenic properties. In the present work, the electrocoagulation technique was used to treat the flotation wastewater from a heavy antimony polluted area, and the mechanism of removing Sb was also investigated. The study focused on the effect of operation parameters such as current density, initial pH and standing time on the Sb removal efficiency. Antimony concentration of below 1 mg/L in the treated wastewater was achieved, which meets the emission standards established by State Department of Environmental Protection and State Administration of China for Quality Supervision and Inspection and Quarantine of China. |
| Keywords: | antimony electrocoagulation sodium butyl xanthate aluminum |
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