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A Microbial Fuel Cell (MFC) was used to generate electricity and decolorize azo dye, achieving higher decolorization efficiency compared to traditional anaerobic technology.

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Representative MFC — matched on the paper’s system type only, not its reactor or geometry.

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Reported parameters

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What they did

System
MFC

What worked

Power density100mW/m²best of 3
Current density1.04A/m²

Abstract

Electricity generation from readily biodegradable organic substrates accompanied by decolorization of azo dye was investigated using a Microbial fuel cell (MFC). Biodegradation was the dominant mechanism of the dye removal, and glucose was the optimal substrate for Red Cibacron-2G (RC) decolorization. Batch experiments were conducted to evaluate the performance of the MFC. As compared to traditional anaerobic technology higher decolorization efficiency was achieved by MFC. Effect of initial dye concentration and external resistance on power generation were studied. Polarization experiments were also directed to find the maximum power density. Maximum Power density of 100mW/m² (1.04A/m²) was recorded at optimum operating conditions.

Key findings

  • Biodegradation was the dominant mechanism of dye removal.
  • Glucose was the optimal substrate for Red Cibacron-2G (RC) decolorization.
  • Maximum Power density of 100mW/m² (1.04A/m²) was recorded at optimum operating conditions.

Keywords

Microbial fuel cellPower densityBiodegradationMaximum power principleAnaerobic exerciseElectricity generation

Identifiers

DOI
10.14419/ijet.v1i2.78
Journal
International Journal of Engineering & Technology
Year
2012