Simultaneous organics removal and bio-electrochemical denitrification in microbial fuel cells

被引：88

作者：

Jia, Yu-Hong ^{[1
]}

Tran, Hung-Thuan ^{[1
]}

Kim, Dae-Hee ^{[1
]}

Oh, Se-Jin ^{[1
]}

Park, Doo-Hyun ^{[2
]}

Zhang, Rui-Hong ^{[3
]}

Ahn, Dae-Hee ^{[1
]}

机构：

[1] Myongji Univ, Dept Environm Engn & Biotechnol, Yongin 449728, Kyonggido, South Korea

[2] Seokyeong Univ, Dept Biol Engn, Seoul 136704, South Korea

[3] Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA

来源：

BIOPROCESS AND BIOSYSTEMS ENGINEERING | 2008年 / 31卷 / 04期

关键词：

microbial fuel cell; microbial biocathode; denitrification; organic removal;

D O I：

10.1007/s00449-007-0164-6

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

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 NO3--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.

引用

页码：315 / 321

页数：7

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