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This study investigates the efficiency of reducing chemical oxygen demand and ammonical nitrogen from leachate using microbial fuel cells (MFCs) with varying ratios of activated sludge and leachate from Rimba Mas Sanitary Landfill. MFCs use microorganisms to degrade pollutants and generate electricity. The optimal ratios of activated sludge to leachate (10:90, 20:80 and 30:70) were determined to improve the performance of microbial fuel cell in reducing chemical oxygen demand (COD) and ammonical nitrogen (AN). Experimental results revealed that the MFCs achieved varying degrees of performance depending on the sludge to leachate ratio. By using ratios of activated sludge to leachate (30:70), the highest reduction with ammonical nitrogen is 88.39% with leachate remained and 79.23% by replenishing leachate every day. As for COD reductions, the highest reduction was 52.65% with leachate retained in MFCs and 57.84% by replenishing leachate. This ratio also resulted in the electricity generation by 960 mV with leachate remained and 1010 mV by replenishing leachate, indicating a strong correlation between pollutant removal and electricity generation. The findings improve the performance and at the same time enhance the treatment of landfill leachate. This study underscores the potential of MFC technology as a sustainable and efficient method for wastewater treatment, providing dual benefits of pollutant removal and energy recovery.

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Removal of Ammonical Nitrogen and Chemical Oxygen Demand by Using Microbial Fuel Cells with Varied Leachate and Sewage Sludge Ratios

  • 会议论文

  • 发表日期：

    2025年

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  • Nurul Syafiqah Azani Fazhil,
  • Choo Jie Hao,
  • Umi Fazara Md Ali,
  • Mohd Irfan Hatim Mohamed Dzahir,
  • Mismisuraya Meor Ahmad,
  • Jaafar Sadeq Mohd Noordin

摘要

This study investigates the efficiency of reducing chemical oxygen demand and ammonical nitrogen from leachate using microbial fuel cells (MFCs) with varying ratios of activated sludge and leachate from Rimba Mas Sanitary Landfill. MFCs use microorganisms to degrade pollutants and generate electricity. The optimal ratios of activated sludge to leachate (10:90, 20:80 and 30:70) were determined to improve the performance of microbial fuel cell in reducing chemical oxygen demand (COD) and ammonical nitrogen (AN). Experimental results revealed that the MFCs achieved varying degrees of performance depending on the sludge to leachate ratio. By using ratios of activated sludge to leachate (30:70), the highest reduction with ammonical nitrogen is 88.39% with leachate remained and 79.23% by replenishing leachate every day. As for COD reductions, the highest reduction was 52.65% with leachate retained in MFCs and 57.84% by replenishing leachate. This ratio also resulted in the electricity generation by 960 mV with leachate remained and 1010 mV by replenishing leachate, indicating a strong correlation between pollutant removal and electricity generation. The findings improve the performance and at the same time enhance the treatment of landfill leachate. This study underscores the potential of MFC technology as a sustainable and efficient method for wastewater treatment, providing dual benefits of pollutant removal and energy recovery.