Jia Yu-Hong, Tran Hung-Thuan, Kim Dae-Hee, Oh Se-Jin, Park Doo-Hyun, Zhang Rui-Hong, Ahn Dae-Hee
Department of Environmental Engineering and Biotechnology, Myongji University, San 38-2 Namdong, Yongin, Kyonggido, 449-728, Republic of Korea.
Bioprocess Biosyst Eng. 2008 Jun;31(4):315-21. doi: 10.1007/s00449-007-0164-6. Epub 2007 Oct 2.
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.
本研究考察了使用微生物燃料电池（MFC）反应器同时去除有机物和进行生物电化学反硝化的情况。阳极室中葡萄糖经微生物氧化产生的电子转移至阳极，然后通过导线流向阴极室的阴极，在阴极微生物利用转移来的电子还原硝酸盐。MFCs获得的最高功率输出为1.7 mW/m²，电流密度为15 mA/m²。最大容积硝酸盐去除率为0.084 mg NO₃⁻-N cm⁻²（电极表面积）天⁻¹。库仑效率约为7%，这表明相当一部分底物在未产生电流的情况下损失了。
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