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Bioelectricity generation enhancement in a dual chamber microbial fuel cell under cathodic enzyme catalyzed dye decolorization

Bakhshian, S ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1016/j.biortech.2011.03.060
  3. Publisher: 2011
  4. Abstract:
  5. Enzymatic decolorization of reactive blue 221 (RB221) using laccase was investigated in a dual-chamber microbial fuel cell (MFC). Suspended laccase was used in the cathode chamber in the absence of any mediators in order to decolorize RB221 and also improve oxygen reduction reaction in the cathode. Molasses was utilized as low cost and high strength energy source in the anode chamber. The capability of MFC for simultaneous molasses and dye removal was investigated. A decolorization efficiency of 87% was achieved in the cathode chamber and 84% COD removal for molasses was observed in the anode chamber. Laccase could catalyze the removal of RB221 and had positive effect on MFC performance as well. Maximum power density increased about 30% when enzymatic decolorization was performed in the cathode chamber
  6. Keywords:
  7. Microbial fuel cell ; Reactive blue 221 ; Anode chambers ; Cathode chambers ; COD removal ; Dye decolorization ; Dye removal ; Energy source ; Enzymatic decolorization ; High strength ; Low costs ; Maximum power density ; Oxygen reduction reaction ; Positive effects ; Cathodes ; Electric generators ; Electrolytic reduction ; Oxygen ; Dye ; Enzyme ; Molasses ; Unclassified drug ; Electricity ; Electricity generation ; Energy efficiency ; Enzyme activity ; Fuel cell ; Microbial activity ; Pollutant removal ; Bioenergy ; Catalysis ; Controlled study ; Decolorization ; Electrode ; Power supply ; Priority journal ; Reduction ; Bioelectric Energy Sources ; Biological Oxygen Demand Analysis ; Color ; Laccase ; Metalloporphyrins
  8. Source: Bioresource Technology ; Volume 102, Issue 12 , June , 2011 , Pages 6761-6765 ; 09608524 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0960852411004172