Performance Evaluation of a Low-Cost Microbial Fuel Cell Using Municipal Wastewater
2013
Buitrón, G. (Germán) | Cervantes-Astorga, Carlos
A low-cost microbial fuel cell (MFC) with a brush-shaped anode was constructed with low-cost materials and operated in a fed-batch mode using wastewater as a substrate. The operational performance of the MFC was evaluated considering the organic matter removal, coulombic efficiencies, and current and power densities. Its relative performance to cost was evaluated considering a MFC with platinum/carbon cathode. It was observed that the organic matter removal efficiency was up to 80 % and the coulombic efficiencies varied from 3.5 to 5.7 %. Maximum average voltages and power and current densities of 207 ± 30 mV, 9.2 ± 2.4 mW m-2, and 56.8 ± 14.9 mA m-2 were obtained, respectively. It was observed that the low-cost MFC produced higher power and current densities per dollar when compared to a MFC using platinum-catalyzed electrode. © 2013 Springer Science+Business Media Dordrecht.
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