Appl Biochem Biotechnol https://doi.org/10.1007/s12010-018-2774-7 Decolorization of Reactive Black 5 and Reactive Blue 4 Dyes in Microbial Fuel Cells 1,2 1 3 Beenish Saba & Ann D. Christy & Tansol Park & 4 1 4 Zhongtang Yu & Ke Li & Olli H. Tuovinen Received: 11 January 2018 /Accepted: 23 April 2018 Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract Microbial fuel cells (MFCs) have potential to treat industrial wastewater containing organic compounds and simultaneously generate power. Organic com- pounds include textile dyes with various chromophore groups, which can be decolor- ized reductively by microorganisms under anaerobic conditions. In the present study, we examined the decolorization of Reactive Black 5 (RB5) azo dye and Reactive Blue 4 (RBL4) anthraquinone dye under open circuit potential in MFCs with graphite plate and graphite felt electrodes and a microbial consortium originally derived from bovine rumen fluid. RB5 dye was more than 90% decolorized in 120, 165, and −1 225 min at 50, 100, and 200 mg L concentrations, respectively. RBL4 dye at 50 −1 −1 and 100 mg L took225 and300 mintodecolorize, while 200mg L RBL4 dye was not decolorized at all. Under closed circuit conditions, decolorization increased with decrease in
Applied Biochemistry and Biotechnology – Springer Journals
Published: May 28, 2018
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