MESSAI.iO

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70% confidence

The study compared the performance of a dual-chamber microbial fuel cell (MFC) using cow and carabao wastewater, with cow wastewater generating higher bioelectricity. The MFC system efficiently transformed organic substrates into electrical energy. Cow wastewater showed better results in bioelectricity generation and wastewater treatment.

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Literature priors

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Distribution

Reported parameters

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Coulombic efficiency41.23%

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What they did

System
MFC
Substrate
real wastewater

What worked

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Abstract

The microbial fuel cell (MFC) is a system that can efficiently and directly transform several non-purified organic substrates and various waste classes into electrical energy from the activity of bacteria. The performance of the dual chamber MFC system using cow and carabao wastewater were compared under identical conditions. Each set-up comprised anode and cathode with 25L wastewater (cow or carabao), microbial inoculant derived from effective microorganisms and molasses, stainless-steel electrodes, and salt bridge as proton exchange membrane (PEM). In these conditions, the MFC was operated for twenty (20) days and three (3) replications. Maximum power densities per surface area generated were 29.19 mW/m² for cow wastewater and 10.88 mW/m² for carabao wastewater. Meanwhile, peak power densities per volume were recorded at 583.87 mW/m³ and 217.51 mW/m³ for cow and carabao wastewater, respectively. Deductively, cow wastewater shows significantly higher results in bioelectricity generation than carabao wastewater. Furthermore, in terms of wastewater treatment, cow wastewater provided a greater TDS reduction efficiency of 41.23% than carabao wastewater, with only 28.59%.

Key findings

  • Maximum power densities per surface area were 29.19 mW/m² for cow wastewater and 10.88 mW/m² for carabao wastewater
  • Peak power densities per volume were 583.87 mW/m³ for cow wastewater and 217.51 mW/m³ for carabao wastewater
  • Cow wastewater had a greater TDS reduction efficiency of 41.23% compared to carabao wastewater with 28.59%

Keywords

Microbial fuel cellSingle chamberWastewaterDual purposeDual (grammatical number)Waste management

Identifiers

DOI
10.63943/sajaas.vol3iss1art50pp16-29
Journal
Southeast Asian Journal of Agriculture and Allied Sciences
Year
2023