Resource recovery in potato chips processing industry: green bioelectricity production using continuous mediatorless microbial fuel cell
Ahmed Y. Radeef, Z. Ismail
AI summary
70% confidenceA dual chamber microbial fuel cell was used to treat potato chips processing wastewater and generate electricity, achieving 99% COD removal and 1012.5 mW/m³ power generation.
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- System
- MFC
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Abstract
ABSTRACT Potato chips processing industry generally discharge large volumes of organic loaded-wastewater and significant amounts of peels as solid wastes. In this study, a dual chamber microbial fuel cell (MFC) was setup, and continuously operated for 120 days for combined biotreatment of potato chips processing wastewater (PCW) and waste potato peels (PP) associated with electricity generation. The discarded PP were dried, grinded, and added to the PCW as a powder at concentrations of 0, 2.5, and 5 g PP/L resulted in three different organic loadings, denoted as OL0, OL1, and OL2, respectively. The results demonstrated significant removal efficiency of COD up to 99% with maximum power generation of 612.5, 800, and 1012.5 mW/m³ for OL0, OL1, and OL2, respectively. Butler–Volmer–Monod model was proposed to describe the overpotential-polarization curve for the MFC. Significant agreement was observed between the predicated and experimental results with determination coefficient (R2) values > 0.91.
Key findings
- Significant removal efficiency of COD up to 99%
- Maximum power generation of 612.5, 800, and 1012.5 mW/m³ for different organic loadings
- Butler–Volmer–Monod model accurately described the overpotential-polarization curve
Keywords
Identifiers
- Journal
- International Journal of Green Energy
- Year
- 2021