Performance comparison of up-flow microbial fuel cells fabricated using proton exchange membrane and earthen cylinder |
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Authors: | Partha Sarathi Jana Manaswini Behera MM Ghangrekar |
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Affiliation: | Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, India |
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Abstract: | Continuous bioelectricity generation was studied in a novel up-flow bio-cathode microbial fuel cell (MFC). The performance of MFC-1, employing commercially available proton exchange membrane (PEM), was evaluated under different organic loading rates (OLRs). Maximum volumetric power density of 10.04 W m−3 was obtained in MFC-1 at the OLR of 0.923 kg COD m−3 d−1. Overall chemical oxygen demand (COD) removal efficiency more than 90% was achieved under all the OLRs. The performance of MFC-1 was compared with MFC-2, in which the inner anode chamber was made up of earthen cylinder, without employing polymer membrane. MFC-2 generated maximum volumetric power density of 14.59 W m−3 at OLR of 0.923 kg COD m−3 d−1, which was 46% higher than that produced in MFC-1. The internal resistance of MFC-1 (96 Ω) was higher than MFC-2 (69 Ω). The earthen cylinder MFC demonstrated better COD removal and power generation than the MFC employing PEM. |
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Keywords: | Earthen cylinder MFC Microbial fuel cell Organic loading rate Power density Proton exchange membrane MFC |
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