Journal
BIORESOURCE TECHNOLOGY
Volume 169, Issue -, Pages 277-283Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.06.084
Keywords
Redox mediators; Textile dye decolorization; Bioelectricity generation; Microbial fuel cells
Funding
- Taiwan's National Science Council for the project of Microbial Fuel Cell (MFC)sdg [NSC 102-2221-E-197-016-MY3]
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Prior studies indicated that biodecolorized intermediates of azo dyes could act as electron shuttles to stimulate wastewater decolorization and bioelectricity generation (WD&BG) in microbial fuel cells (MFCs). This study tended to explore whether non-azo textile dyes (i.e., thionin and malachite green) could also own such redox-mediating capabilities for WD&BG. Prior findings mentioned that -OH and/or -NH2 substitute-containing auxochrome compounds (e.g., 2-aminophenol and 1,2-dihydroxybenzene) could effectively mediate electron transport in MFCs for simultaneous WD&BG. This work clearly suggested that the presence of electron-mediating textile dyes (e.g., thionin and malachite green (MG)) in MFCs is promising to stimulate color removal and bioelectricity generation. That is, using MFCs as operation strategy for wastewater biodecolorization is economically promising in industrial applications due to autocatalytic acceleration of electron-flux for WD&BG in MFCs. (C) 2014 Elsevier Ltd. All rights reserved.
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