Characteristics of Electricity Generation by Microbial Fuel Cell for Wastewater Treatment

폐수처리를 위한 미생물연료전지의 전기생산 특성

  • Kim, Sun-Il (Department of Chemical Engineering, Chosun University) ;
  • Lee, Sung-Wook (Department of Chemical Engineering, Chosun University) ;
  • Kim, Kyung-Ryang (Department of Chemical Engineering, Chosun University) ;
  • Lee, Jae-Wook (Department of Chemical Engineering, Chosun University) ;
  • Roh, Sung-Hee (Research Institute of Advanced Engineering Technology, Chosun University)
  • 김선일 (조선대학교 화학공학과) ;
  • 이성욱 (조선대학교 화학공학과) ;
  • 김경량 (조선대학교 화학공학과) ;
  • 이재욱 (조선대학교 화학공학과) ;
  • 노성희 (조선대학교 공학기술연구원)
  • Received : 2009.02.10
  • Accepted : 2009.02.24
  • Published : 2009.04.10


Microbial fuel cells (MFCs) have been known as a new alternative energy conversion technology for treating wastewater and producing electricity simultaneously. A MFC converts the chemical energy of the organic compounds to electrical energy through microbial catalysis at the anode under anaerobic conditions. To examine the performance of MFC, in this work, the characteristics of the efficiency of wastewater treatment and generation of electricity was evaluated for sewage. When acetate as a carbon source was added into the sewage, the removal efficiency of COD was increased from 75.7% to 88.2% and the voltage was increased significantly from 0.22 V to 0.4 V. The influence of distance between anode and cathode was examined and the effect of the surface area of anode was investigated under the various external resistances. It was found that the maximum power density was $610mW/m^2$ and power generation was effective when the distance between the electrodes was shorter and the surface area of the anode was smaller.


Supported by : 교육인적자원부, 한국학술진흥재단


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