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《CIESC Journal》 2012-S1
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Response of a microbial fuel cell to variable loads

LI Jun,ZHANG Liang,ZHU Xun,YE Dingding,LIAO Qiang(Key Laboratory of Low-grade Energy Utilization Technologies and Systems,Ministry of Education, Institute of Engineering Thermophysics,Chongqing University,Chongqing 400030,China)  
Response of a microbial fuel cell under variable load conditions is of paramount importance when it is used for the application of wastewater treatment.In this study,four two-chamber MFCs were started up and evaluated under an external resistance of 50,100,400,1000 Ω,respectively.The results indicated that MFC-50 has the longest log phase for the development of the biofilm while a highest maximum power density can be obtained after start-up.It was also found that the voltages of MFC-100 and MFC-50 dropped and maintained a steady-state when a 50Ω resistance was connected into the electrical circuit,whereas the voltages of MFC-400 and MFC-1000 elevated slowly for ~2 d to the values similar to those of MFC-200 and MFC-50 after the initial abrupt drop under the same loading condition.After the stabilization of the MFCs,the maximum power densities of all the MFCs were comparable and reached 2000 mW·m-2.Further switching the external resistance from a small to large one,no noticeable change in performance can be found.
【Fund】: 国家自然科学基金项目(51176212);; 国家杰出青年基金项目(50825602);; 中央高校基本科研业务费资助(CDJXS11142230 CDJZR10140013);; 教育部新世纪人才资助计划(NCET-11-0551)~~
【CateGory Index】: TM911.4
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1 FU Qian LI Jun LIAO Qiang ZHU Xun DING Yu-Dong (Institute of Engineering Thermophysics,Chongqing University,Chongqing 400030,China);PERFORMANCE OF A MFC USING POTASSIUM PERSULFATE AS CATHODIC ELECTRON ACCEPTOR[J];Journal of Engineering Thermophysics;2009-08
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