Responses from freshwater sediment during electricity generation using microbial fuel cells

Title
Responses from freshwater sediment during electricity generation using microbial fuel cells
Authors
홍석원장인섭최용수김병홍정태학
Keywords
anaerobic oxidation; electrodes; microbial fuel cell; redox potential; sediment; 인터넷게재, 2008.8; 2008평가(기관고유,개인)에 반영되었음
Issue Date
2009-04
Publisher
Bioprocess and biosystems engineering
Citation
VOL 32, NO 3, 389-395
Abstract
In a two-electrode system, freshwater sediment was used as a fuel to examine the relationship between current generation and organic matter consumption with different types of electrode. Sediment microbial fuel cells using porous electrodes showed a superior performance in terms of generating current when compared with the use of non-porous electrodes. The maximum current densities with thicker and thin porous electrodes were 45.4 and 37.6 mA m-2, respectively, whereas the value with nonporous electrodes was 13.9 mA m-2. The amount of organic matter removed correlated with the current produced. The redox potential in the anode area under closedcircuit conditions was ?246.3 ± 67.7 mV, while that under open-circuit conditions only reached -143.0 ± 7.18 mV. This suggests that an application of this system in organicrich sediment could provide environmental benefits such as decreasing organic matter and prohibiting methane emission in conjunction with electricity production via an anaerobic oxidation process.
URI
http://pubs.kist.re.kr/handle/201004/33835
ISSN
1615-7591
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KIST Publication > Article
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