✦ LIBER ✦

Microbial fuel cells utilising carbohydrates

✍ Scribed by Keith Scott; Cassandro Murano

Publisher: Wiley (John Wiley & Sons)
Year: 2006
Tongue: English
Weight: 316 KB
Volume: 82
Category: Article
ISSN: 0268-2575
DOI: 10.1002/jctb.1641

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✦ Synopsis

Abstract

The paper reports results of a mediatorless microbial fuel cell (MFC), utilising waste carbohydrate (manure) as a fuel, which did not use a catalyst or a proton exchange membrane and is thus environmentally friendly (by using no toxic substances) in treating waste. The cell used a manure sludge in the anode compartment and an aqueous salt solution (seawater) containing dissolved oxygen. The influence of the geometric position of the anode and cathode, both made of carbon cloth, had a major effect on the fuel cell power performance. The maximum power density obtained with the cell was 4.21 mW m^−2^. The paper also reports results of a mediated MFC using a yogurt bacteria and methylene blue as mediator. This cell produced a maximum power density of over 13 mW m^−2^. This power output compares quite favourably with that achieved with the same cell using glucose as fuel with E. coli (peak power density of 180 mW m^−2^). Copyright © 2007 Society of Chemical Industry

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