<![CDATA[Research on the simultaneous application of microbial fuel cells (MFCs) for electricity generation and contaminant reduction in leachate has been conducted. A leachate sample collected from the Puuwatu Final Disposal Site was used as the substrate in an MFC system. The investigation included measuring the electrical power generated by the MFC and analyzing contaminant levels in the leachate. The MFC was designed in a dual-chamber configuration with two oxidizing agents, KMnO4 and K2Cr2O7. Six MFC cells were prepared for each treatment and evaluated based on the electrical power generated. During the first 3–5 days of incubation, both MFCs using KMnO4 and K2Cr2O7 showed a significant increase in electrical power. The MFC using KMnO4 reached a maximum electrical power of 556.52 μW on day 4, whereas the MFC using K2Cr2O7 reached a maximum of 385.40 μW on day 5. After 50 days of MFC operation, the leachate showed reductions in COD, BOD, C-organic, N-organic, C/N ratio, and TSS, accompanied by an increase in pH. The removal percentages for COD, BOD, C-organic, and N-organic were 51.7%, 93.1%, 69.5%, and 2.0%, respectively. Comparison with the applicable quality standards indicated that, despite a reduction in contaminant levels after MFC treatment, the leachate still required further treatment to meet the standards.]]>
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