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  • simultaneous co-metabolic decolourisation of azo dye mixtures and bio-electricity generation under thermophillic (50 °c) and saline conditions by an adapted anaerobic mixed culture in microbial fuel cells

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 428
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     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.

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