title: Simultaneous anaerobic sulfide and nitrate removal coupled with electricity generation in Microbial Fuel Cell.
abstract: 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.
authors.affiliation: College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Cai
authors.forename: Ping
authors.initials: P
authors.lastname: Zheng
authors.forename: Jiqiang
authors.initials: J
authors.lastname: Zhang
authors.forename: Zuofu
authors.initials: Z
authors.lastname: Xie
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Peide
authors.initials: P
authors.lastname: Sun
mesh_terms: D001421:Bacteria, Anaerobic / Q000502:physiology*; D001674:Bioelectric Energy Sources / Q000382:microbiology*; D004560:Electricity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009566:Nitrates / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism; D013440:Sulfides / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism; D062065:Wastewater / Q000737:chemistry / Q000382:microbiology; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism; D018508:Water Purification / Q000295:instrumentation*
chemical_list: D009566:Nitrates; D013440:Sulfides; D062065:Wastewater; D014874:Water Pollutants, Chemical