کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10395442 | 888977 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Saccharomyces cerevisiae as anodic biocatalyst for power generation in biofuel cell: Influence of redox condition and substrate load
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
Bio (microbial) fuel cell (microbial fuel cell) with Saccharomyces cerevisiae as anodic biocatalyst was evaluated in terms of power generation and substrate degradation at three redox conditions (5.0, 6.0 and 7.0). Fuel cell was operated in single chamber (open-air cathode) configuration without mediators using non-catalyzed graphite as electrodes. The performance was further studied with increasing loading rate (OLRI, 0.91Â kg COD/m3-day; OLRII, 1.43Â kg COD/m3). Higher current density was observed at pHÂ 6.0 [160.36Â mA/m2 (OLRI); 282.83Â mA/m2 (OLRII)] than pHÂ 5.0 (137.24Â mA/m2) and pH 7.0 (129.25Â mA/m2). Bio-electrochemical behavior of fuel cell was evaluated using cyclic voltammetry which showed the presence of redox mediators (NADH/NAD+; FADH/FAD+). Higher electron discharge was observed at pHÂ 6.0, suggesting higher proton shuttling through the involvement of different redox mediators. The application of yeast based fuel cell can be extended to treat high strength wastewaters with simultaneous power generation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 3, February 2011, Pages 2751-2757
Journal: Bioresource Technology - Volume 102, Issue 3, February 2011, Pages 2751-2757
نویسندگان
S. Veer Raghavulu, R. Kannaiah Goud, P.N. Sarma, S. Venkata Mohan,