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Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.50 [2012] >
IJEB Vol.50(06) [June 2012] >
| Title: | Microbial fuel cells demonstrate high coulombic efficiency applicable for water remediation |
| Authors: | Devasahayam, Mercy
Masih, Sam A |
| Keywords: | Bioelectricity
Bioremediation
Coulombic efficiency
E. coli
MFC |
| Issue Date: | Jun-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Microbial fuel cells (MFCs) convert biomass
into electricity by the metabolic activity of microorganisms and are also used
for remediation and water treatment. Power output was compared for a dual
chambered membrane MFC using either
E. coli or two Yamuna river samples,
Yamuna (before the Sangam region)—slow flow (sample 1) and Sangam region —fast
flow (sample 2). E. coli and the two
river water samples 1 and 2 gave a maximum voltage of 779, 463 and 415 mV
respectively. Using E. coli the
maximum power density obtained with a 100 Ω resistor was 220.66 mW/cm2
and the highest power generated 6068.41 mW. The results demonstrate E. coli, river sample 1 and river sample
2 have a comparable coulombic efficiency of 85.2, 71 and 77% respectively when
using 0.4% sucrose as substrate. The decrease
in chemical oxidative demand of all river water samples using MFC technology
demonstrates efficient remediation
of inland water. |
| Page(s): | 430-438 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1009 (Online); 0019-5189 (Print) |
| Source: | IJEB Vol.50(06) [June 2012]
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