Journal article
Influence of ionic conductivity in bioelectricity production from saline domestic sewage sludge in microbial fuel cells
Bioresource Technology, Vol.200, pp.845-852
2016
Abstract
This study aimed at manipulating ionic conductivity (EC) to harvest the maximum electrical energy from seawater-based domestic wastewater sewage sludge (SWS), unique to only a few cities, through microbial fuel cell (MFC). SWS has never been investigated as a MFC substrate before, and thus the influence of high in-situ EC on the energy recovery was unknown. In this study, the EC of the SWS was reduced through mixing it with fresh water-based domestic wastewater sewage sludge (FWS) or diluted 50% using deionized water while FWS and SWS were individually served as reference treatments. SWS:FWS mix (1:1) exhibited a maximum Coulombic efficiency of 28.6±0.5% at a COD removal of 59±3% while the peak power density was 20-fold higher than FWS. The improved performance was due to the lower ohmic internal resistance (36.8±4.2Ω) and optimal conductivity (12.8±0.2mScm(-1)). Therefore, dilution with FWS could enhance energy recovery from SWS.
Details
- Title
- Influence of ionic conductivity in bioelectricity production from saline domestic sewage sludge in microbial fuel cells
- Authors/Creators
- R. Karthikeyan (Author/Creator)A. Selvam (Author/Creator)K.Y. Cheng (Author/Creator)J.W.C. Wong (Author/Creator)
- Publication Details
- Bioresource Technology, Vol.200, pp.845-852
- Publisher
- Elsevier BV
- Identifiers
- 991005541611507891
- Copyright
- © 2015 Elsevier Ltd.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.83 Bioengineering
- 3.83.1487 Microbial Fuel Cell
- Web Of Science research areas
- Agricultural Engineering
- Biotechnology & Applied Microbiology
- Energy & Fuels
- ESI research areas
- Biology & Biochemistry