MESSAI.iO

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MFC research in bacteria, performance. Rapid industrialization and population growth have generated a worldwide interest in renewable energ...

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Literature priors

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Distribution

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Coulombic efficiency96%

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What they did

System
MFC

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Abstract

Rapid industrialization and population growth have generated a worldwide interest in renewable energy resourcesto meet. In this context, microbial fuel cells serve the dual purpose of electricity generation and wastewater treatment in a sustainable way. Here, we conducted a set of experiments in two-chambered microbial fuel cell (MFC) to study its efficiency in chemical oxygen demand (COD) removal and electricity generation. The MFC was run at constant pH of 5.5 and mesophilic temperature of 30-32  C using mixed consortia of sediment as inoculum and candy industry wastewater as substrate. Of the five different initial substrate concentrations of 2000, 4000, 6000, 8000 and 10000 mg COD/L studied, the highest COD removal efficiency of 96.0% and electricity generation of 810 mV was recorded at the initial substrate concentration of 4000 mg COD/L. The experiments conducted also revealed that iron oxide nanoparticles concentration of 0.10 g/L with an average size of 25.64 nm, increased the electricity generation potential to 870 mV by 6.9%. Among the different species of bioelectricity generating bacteria colonized, Corynebacterium variabile SMS-14 was documented as the most dominant species.

Keywords

Microbial fuel cellChemical oxygen demandElectricity generationPopulationContext (archaeology)Wastewater

Identifiers

DOI
10.56042/ijeb.v58i08.39416
Journal
Indian Journal of Experimental Biology
Year
2020