Abstract
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.
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Acknowledgments
The authors wish to thank DGAPA-UNAM (project PAPIIT IN104710) for the financial support. Jaime Perez and Gloria Moreno are acknowledged for their technical assistance.
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Buitrón, G., Cervantes-Astorga, C. Performance Evaluation of a Low-Cost Microbial Fuel Cell Using Municipal Wastewater. Water Air Soil Pollut 224, 1470 (2013). https://doi.org/10.1007/s11270-013-1470-z
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DOI: https://doi.org/10.1007/s11270-013-1470-z