Simultaneous organics removal and bio-electrochemical denitrification in microbial fuel cells.
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.
Jia
Yu-Hong
YH
Department of Environmental Engineering and Biotechnology, Myongji University, San 38-2 Namdong, Yongin, Kyonggido, 449-728, Republic of Korea.
Tran
Hung-Thuan
HT
Kim
Dae-Hee
DH
Oh
Se-Jin
SJ
Park
Doo-Hyun
DH
Zhang
Rui-Hong
RH
Ahn
Dae-Hee
DH
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*
D009573:Nitrites; D009930:Organic Chemicals