Construction and operation of a novel mediator- and membrane-less microbial fuel cell

Jae Kyung Jang, The Hai Pham, In Seop Chang, Kui Hyun Kang, Hyunsoo Moon, Kyung Suk Cho, Byung Hong Kim

Research output: Contribution to journalArticlepeer-review

406 Scopus citations

Abstract

A membrane-less microbial fuel cell (ML-MFC) with the internal resistance of 3.9 MΩ was used to enrich a microbial consortium oxidizing electron donors with concomitant current generation. Within 4 weeks the system generated a stable current of 2 mA. The current yield was less than 10%. Forced aeration to the cathode compartment generated higher current, but the yield was similar. Use of a cathode with a higher affinity for oxygen could improve the current yield. Additions of NaCl or HCl increased the current generation further with the current yield of 15%. Aerobic microbes turned out to be the predominant oxygen consumer at the cathode. Based on these findings suggestions are made for a ML-MFC configuration with better performance.

Original languageEnglish
Pages (from-to)1007-1012
Number of pages6
JournalProcess Biochemistry
Volume39
Issue number8
DOIs
StatePublished - 30 Apr 2004

Keywords

  • Aeration
  • Mediator-less
  • Membrane-less
  • Microbial fuel cell (MFC)
  • Pt-coated graphite felt
  • Wastewater treatment

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