Effect of electrode combinations on bioelectricity generation in microbial fuel cell using wastewater from pulp and paper industry
DOI:
https://doi.org/10.5564/bjsir.v59i4.75663Keywords:
Wastewater, Pulp and paper, Microbes, Secondary energy, MFCAbstract
Microbial fuel cell (MFC) technology is an innovative approach to sustainable power generation from wastewater. This study aims to use non-toxic metal (Al, Zn, and Cu) and carbonaceous electrode sets with reduced internal resistance in the six MFCs to reduce the cost and toxicity of electrodes and produce electricity along with wastewater management in the pulp and paper industry. Among them, MFC-5 (Zn as an anode, Cu as cathode material, and CuSO4.5H2O as electrolyte) shows maximum voltage, current, and power density at 1185 mV, 4.79 mA, and 939 mW/m2 respectively. Another cell (MFC-2) with carbonaceous cathodic material and containing no electrolyte
solution, exhibits the second highest output voltage, current, and power density at 1193 mV, 2.69 mA, and 533 mW/m2 respectively. This research also demonstrated that MFC-5 and MFC-2 effectively removed 94.8±1% and 93.6±0.5% of biochemical oxygen demand (BOD) after 15 days, highlighting their potential for wastewater treatment.
Bangladesh J. Sci. Ind. Res. 59(4), 249-260, 2024
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