کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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681194 | 1460016 | 2013 | 8 صفحه PDF | دانلود رایگان |

In this study, azo dye adapted mixed microbial consortium was used to effectively remove colour from azo dye mixtures and to simultaneously generate bio-electricity using microbial fuel cells (MFCs). Operating temperature (20–50 °C) and salinity (0.5–2.5% w/v) were varied during experiments. Reactor operation at 50 °C improved dye decolourisation and COD removal kinetic constants by approximately 2-fold compared to the kinetic constants at 30 °C. Decolourisation and COD removal kinetic constants remained high (0.28 h−1 and 0.064 h−1 respectively) at moderate salinity (1% w/v) but deteriorated approximately 4-fold when the salinity was raised to 2.5% (w/v). Molecular phylogenetic analysis of microbial cultures used in the study indicated that both un-acclimated and dye acclimated cultures from MFCs were predominantly comprised of Firmicutes bacteria. This study demonstrates the possibility of using adapted microbial consortia in MFCs for achieving efficient bio-decolourisation of complex azo dye mixtures and concomitant bio-electricity generation under industrially relevant conditions.
► Effective decolourisation of azo dye mixtures in microbial fuel cells.
► Concomitant electricity generation.
► Dye decolourisation under thermophillic and saline conditions.
► Azo dye adapted mixed microbial cultures and co-substrate molasses for dye removal.
Journal: Bioresource Technology - Volume 127, January 2013, Pages 1–8