Electricity production in membrane-less microbial fuel cell fed with livestock organic solid waste |
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Authors: | Lee Yunhee Nirmalakhandan Nagamany |
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Affiliation: | Civil Engineering Department, MSC 3CE, New Mexico State University, Las Cruces, NM 88003, USA |
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Abstract: | Two different MFC configurations designed for handling solid wastes as a feedstock were evaluated in batch mode: a single compartment combined membrane-electrodes (SCME) design; and a twin-compartment brush-type anode electrodes (TBE) design (reversed T-shape MFC with two-air cathode) without a proton exchange membrane (PEM). Cattle manure was tested as a model livestock organic solid waste feedstock. Under steady conditions, voltage of 0.38 V was recorded with an external resistance of 470 Ω. When digested anaerobic sludge was used as the seed in the SCME design, a maximum power density of 36.6 mW/m2 was recorded. When hydrogen-generating bacteria (HGB) were used as the seed used in the TBE design, a higher power density of 67 mW/m2 was recorded. |
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Keywords: | Bioelectricity Hydrogen-generating bacteria Livestock organic solid waste Mediator Microbial fuel cell |
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