Microbial fuel cells using mixed cultures of wastewater for electricity generation

Zain .S.M, and Roslani .N.S, and Hashim .R, and Anuar .N, and Suja .N.F, and Daud .W.R.W, and Basri .N.E.A, (2011) Microbial fuel cells using mixed cultures of wastewater for electricity generation. Sains Malaysiana, 40 (9). pp. 993-997. ISSN 0126-6039


Official URL: http:www.ukm.my/jsm/


Fossil fuels (petroleum, natural gas and coal) are the main resources for generating electricity. However, they have been major contributors to environmental problems. One potential alternative to explore is the use of microbial fuel cells (MFCs), which generate electricity using microorganisms. MFCs uses catalytic reactions activated by microorganisms to convert energy preserved in the chemical bonds between organic molecules into electrical energy. MFC has the ability to generate electricity during the wastewater treatment process while simultaneously treating the pollutants. This study investigated the potential of using different types of mixed cultures (raw sewage, mixed liquor from the aeration tank & return waste activated sludge) from an activated sludge treatment plant in MFCs for electricity generation and pollutant removals (COD & total kjeldahl nitrogen, TKN). The MFC in this study was designed as a dual-chambered system, in which the chambers were separated by a NafionTM membrane using a mixed culture of wastewater as a biocatalyst. The maximum power density generated using activated sludge was 9.053 mW/cm2, with 26.8% COD removal and 40% TKN removal. It is demonstrated that MFC offers great potential to optimize power generation using mixed cultures of wastewater.

Item Type:Article
Keywords:Dual-chambered system; electricity; microbial fuel cell (MFC); mixed cultures; wastewater
Journal:Sains Malaysiana
ID Code:2631
Deposited By: Mr Azam
Deposited On:08 Aug 2011 04:11
Last Modified:14 Dec 2016 06:32

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