Simultaneous removal of sulfide and organics with vanadium(V) reduction in microbial fuel cells
文献类型： 外文期刊
作者： Zhang, Baogang 1 ; Zhao, Huazhang 1 ; Shi, Chunhong 2 ; Zhou, Shungui 3 ; Ni, Jinren 1 ;
作者机构： 1.Peking Univ, Dept Environm Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R China
2.Univ Sci & Technol Beijing, Dept Environm Engn, Beijing 100083, Peoples R China
3.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China
关键词： sulfide;microbial fuel cells;vanadium (V);electricity generation;wastewater treatment
期刊名称：JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY （ 影响因子：3.174； 五年影响因子：3.137 ）
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年卷期：
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收录情况： SCI
摘要： BACKGROUND: Sulfide-containing wastewater (also containing organics) and vanadium(V)-containing wastewater exist widelyand can be treated in microbial fuel cells (MFCs) based on their chemical conditions. A novel process has been investigatedusing MFC technologies by employing sulfide, organics and V(V) as electron donors and acceptor, respectively. RESULTS: Electrons produced by oxidation of sulfide and organics in the anode compartment were transferred to the anodesurface, then flowed to the cathode through an external circuit, where they were consumed to reduce V(V). Sulfide and totalorganics removal approached 84.7 ±2.8% and 20.7 ± 2.1%, with a V(V) reduction rate of 25.3 ± 1.1%. The maximum poweroutput obtained was 572.4 ± 18.2 mW m-2. The effects of the microbes on electricity generation as well as the products ofsulfide oxidation and V(V) reduction were also evaluated and analyzed. CONCLUSION: This process achieves both sulfide and V(V) removal with electricity generation simultaneously, providing aneconomical route for treating these kinds of wastewaters.
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