Mathematical Modeling of an Integrated Microbial Fuel Cell-Bioreactor System for Slaughterhouse Wastewater Treatment
D. Gowthaman, A. Shamadhani Begum, S. Thamizh Suganya, Muhammad Rafiq +1
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72% confidenceThis paper presents a comprehensive analytical mathematical model for an integrated microbial fuel cell–oxic–anoxic bioreactor (MFC–OB–ANB) system treating slaughterhouse wastewater. Using acetate as a representative substrate, the authors derive closed-form analytical solutions for substrate degradation, nitrogen transformation, current density, and system voltage. Parametric studies reveal that enhanced biofilm conductivity and reduced membrane resistance significantly improve energy recovery, while optimized substrate loading enhances nitrogen removal. The framework provides design insights for integrated bioelectrochemical wastewater treatment systems.
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Abstract
This study presents an analytical mathematical model for an integrated microbial fuel cell--oxic--anoxic bioreactor (MFC--OB--ANB) system designed for simultaneous slaughterhouse wastewater treatment and energy recovery. The model incorporates bioelectrochemical oxidation, nitrification, and denitrification processes using acetate as a representative substrate. Closed-form analytical solutions are derived for substrate degradation, nitrogen transformation, current density, and system voltage. The effects of biofilm thickness, membrane conductivity, and influent substrate concentration on treatment efficiency and power generation are systematically investigated. Results reveal that enhanced biofilm conductivity and reduced membrane resistance significantly improve energy recovery, while optimized substrate loading enhances nitrogen removal performance. The proposed framework provides valuable insights for the design and optimization of integrated bioelectrochemical wastewater treatment systems.
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- Journal
- International Journal of Thermo-Fluid Systems and Sustainable Energy
- Year
- 2025