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Two-chamber Microbial Fuel Cells (MFC) using graphite rods as electrodes were operated for simultaneous anaerobic sulfide and nitrate removal coupled with electricity generation. The MFC showed good ability to remove substrates. When the influent sulfide and nitrate concentrations were 780 mg/L and 135.49 mg/L, respectively, the removal percentages of sulfide and nitrate were higher than 90% and the main end products were nitrogen and sulfate. The MFC also showed good ability to generate electricity, and the voltage went up with the rise of influent substrate concentrations. When the external resistance was 1000 Ω, its highest steady voltage was 71 mV. Based on the linear relationship between the electrons released by substrates and accepted by electrode, it was concluded that the electricity generation was coupled with the substrate conversion in the MFC. Copyright © 2012 Elsevier Ltd. All rights reserved.


Jing Cai, Ping Zheng, Jiqiang Zhang, Zuofu Xie, Wei Li, Peide Sun. Simultaneous anaerobic sulfide and nitrate removal coupled with electricity generation in Microbial Fuel Cell. Bioresource technology. 2013 Feb;129:224-8

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PMID: 23247150

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