کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
681194 1460016 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
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
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 127, January 2013, Pages 1–8
نویسندگان
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