Biotechnology Letters

, Volume 33, Issue 4, pp 705–714

Performance of microbial fuel cell with volatile fatty acids from food wastes

Original Research Paper

Abstract

Food wastes were used as feedstock for the direct production of electricity in a microbial fuel cell (MFC). MFC operations with volatile fatty acids (VFA) produced 533 mV with a maximum power density of 240 mW/m2. Short-chain VFAs, such as acetate, were degraded more rapidly and thus supported higher power generation than longer chain ones. In general, the co-existence of other, different VFAs slowed the removal of each VFA, which indicated that anodic microbes were competing for different substrates. 16S rRNA gene analysis using PCR-DGGE indicated that the MFC operation with VFAs had enriched unique microbial species.

Keywords

Food waste Microbial fuel cell Ostrich dung inoculum Volatile fatty acid 

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Department of Chemical and Biomolecular EngineeringKAISTDaejeonKorea
  2. 2.Department of Civil and Environmental EngineeringKAISTDaejeonKorea

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