Responses from freshwater sediment during electricity generation using microbial fuel cells
- Responses from freshwater sediment during electricity generation using microbial fuel cells
- 홍석원; 장인섭; 최용수; 김병홍; 정태학
- anaerobic oxidation; electrodes; microbial fuel cell; redox potential; sediment; 인터넷게재, 2008.8; 2008평가(기관고유,개인)에 반영되었음
- Issue Date
- Bioprocess and biosystems engineering
- VOL 32, NO 3, 389-395
- 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.
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