title: Bioelectricity generation enhancement in a dual chamber microbial fuel cell under cathodic enzyme catalyzed dye decolorization.
abstract: 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.
authors.affiliation: Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465, Azadi Ave., Tehran, Iran.
authors.forename: Sahar
authors.initials: S
authors.lastname: Bakhshian
authors.forename: Hamid-Reza
authors.initials: HR
authors.lastname: Kariminia
authors.forename: Ramin
authors.initials: R
authors.lastname: Roshandel
mesh_terms: D001674:Bioelectric Energy Sources; D057919:Biological Oxygen Demand Analysis; D003116:Color; D042845:Laccase / Q000378:metabolism*; D008665:Metalloporphyrins / Q000378:metabolism*; D008965:Molasses
chemical_list: D008665:Metalloporphyrins; D042845:Laccase