title: Simultaneous organics removal and bio-electrochemical denitrification in microbial fuel cells.
abstract: Simultaneous organics removal and bio-electrochemical denitrification using a microbial fuel cell (MFC) reactor were investigated in this study. The electrons produced as a result of the microbial oxidation of glucose in the anodic chamber were transferred to the anode, which then flowed to the cathode in the cathodic chamber through a wire, where microorganisms used the transferred electrons to reduce the nitrate. The highest power output obtained on the MFCs was 1.7 mW/m(2) at a current density of 15 mA/m(2). The maximum volumetric nitrate removal rate was 0.084 mg NO(3)(-)-N cm(-2) (electrode surface area) day(-1). The coulombic efficiency was about 7%, which demonstrated that a substantial fraction of substrate was lost without current generation.
authors.affiliation: Department of Environmental Engineering and Biotechnology, Myongji University, San 38-2 Namdong, Yongin, Kyonggido, 449-728, Republic of Korea.
authors.forename: Yu-Hong
authors.initials: YH
authors.lastname: Jia
authors.forename: Hung-Thuan
authors.initials: HT
authors.lastname: Tran
authors.forename: Dae-Hee
authors.initials: DH
authors.lastname: Kim
authors.forename: Se-Jin
authors.initials: SJ
authors.lastname: Oh
authors.forename: Doo-Hyun
authors.initials: DH
authors.lastname: Park
authors.forename: Rui-Hong
authors.initials: RH
authors.lastname: Zhang
authors.forename: Dae-Hee
authors.initials: DH
authors.lastname: Ahn
mesh_terms: D001673:Biodegradation, Environmental; D001674:Bioelectric Energy Sources / Q000382:microbiology*; D004563:Electrochemistry / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009573:Nitrites / Q000378:metabolism*; D009930:Organic Chemicals / Q000302:isolation & purification* / Q000378:metabolism*
chemical_list: D009573:Nitrites; D009930:Organic Chemicals