Microbial fuel cells (MFCs) have been created using rice washing wastewater and banana (Musa Paradisiaca L.) peel. This mixture was used as a substrate, and KMnO4 served as a cathode solution in a dual-chamber MFCs designed to produce bio-energy. The reactor was also equipped with a salt bridge as a proton exchange membrane. Substrate variations include white rice extract and banana peel waste in the ratio of 90:10, 80:20, and 70:30. Effective Microorganisms 4 (EM4) was added to each waste mixture combination to examine the most optimum electricity potential. The highest electricity production value was obtained by waste composition of 90:10 by catalyst addition, with a power density of 150.50 mW/m2 in the MFC reactor. MFC technology is proven to reduce COD and BOD levels in waste. At a waste ratio of 90:10, without the addition of EM4, MCF application reduced both chemical oxygen demand (COD) and biochemical oxygen demand (BOD) by 7.954 and 14.084%, respectively. Meanwhile, at the same ratio, MCF application with the addition of EM4 led to COD and BOD reduction by 1.886% and 20.297%, subsequently. This result underlines the potential utilization of MCF to convert household waste into electricity, although more optimation trials were deemed to be necessary.

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