Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Effects of operating parameters on the performance of continuous flow microbial fuel cell

연속식 미생물연료전지 성능에 미치는 운전변수의 영향

  • Chung, Jae-Woo (Department of Environmental Engineering, Green Technology Institute, Gyeongnam National University of Science and Technology) ;
  • Choi, Young-Dae (Department of Environmental Engineering, Green Technology Institute, Gyeongnam National University of Science and Technology) ;
  • Lee, Myoung-Eun (Department of Environmental Engineering, Green Technology Institute, Gyeongnam National University of Science and Technology) ;
  • Song, Young-Chae (Department of Environmental Engineering, Korea Maritime University) ;
  • Woo, Jung-Hui (Department of Environmental Engineering, Korea Maritime University) ;
  • Yoo, Kyu-Seon (Department of Civil and Environmental Engineering, Jeonju University) ;
  • Lee, Chae-Young (Department of Civil Engineering, The University of Suwon)
  • 정재우 (경남과학기술대학교 환경공학과, 녹색기술연구소) ;
  • 최영대 (경남과학기술대학교 환경공학과, 녹색기술연구소) ;
  • 이명은 (경남과학기술대학교 환경공학과, 녹색기술연구소) ;
  • 송영채 (한국해양대학교 환경공학과) ;
  • 우정희 (한국해양대학교 환경공학과) ;
  • 유규선 (전주대학교 토목환경공학과) ;
  • 이채영 (수원대학교 토목공학과)
  • Received : 2012.03.25
  • Accepted : 2013.08.14
  • Published : 2013.08.15
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Abstract

Effects of operating parameters such as hydraulic retention time(HRT), recycle ratio and influent COD concentration on the performance of a continuous flow microbial fuel cell(MFC) were investigated. Decrease of HRT improved mass transfer of substrate to electrogenic microorganisms, therefore resulting in increased electrode voltage and power generation of MFC. Increase of HRT promoted COD removal by elongating retention time for COD removal in MFC. Recycling of effluent increased the COD removal and coulombic efficiencies by returning suspended microorganisms into MFC. Increase of influent COD enhanced COD removal due to the improved mass transfer of substrate. Decrease of coulombic efficiency by the increase of the HRT and influent COD concentration indicated that they enhanced the activities of fermentative bacteria.

Keywords

References

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