Responses from freshwater sediment during electricity generation using microbial fuel cells

Seok Won Hong, In Seop Chang, Yong Su Choi, Byung Hong Kim, Tai Hak Chung

Research output: Contribution to journalArticle

56 Citations (Scopus)

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 non-porous 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 closed-circuit 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 organic-rich sediment could provide environmental benefits such as decreasing organic matter and prohibiting methane emission in conjunction with electricity production via an anaerobic oxidation process.

Original languageEnglish
Pages (from-to)389-395
Number of pages7
JournalBioprocess and Biosystems Engineering
Volume32
Issue number3
DOIs
Publication statusPublished - Apr 2009
Externally publishedYes

Fingerprint

Bioelectric Energy Sources
Microbial fuel cells
Electricity
Fresh Water
Electrodes
Sediments
Biological materials
Networks (circuits)
Methane
Anodes
Current density
Oxidation-Reduction
Oxidation

Keywords

  • Anaerobic oxidation
  • Electrodes
  • Microbial fuel cell
  • Redox potential
  • Sediment

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering

Cite this

Responses from freshwater sediment during electricity generation using microbial fuel cells. / Hong, Seok Won; Chang, In Seop; Choi, Yong Su; Kim, Byung Hong; Chung, Tai Hak.

In: Bioprocess and Biosystems Engineering, Vol. 32, No. 3, 04.2009, p. 389-395.

Research output: Contribution to journalArticle

Hong, Seok Won ; Chang, In Seop ; Choi, Yong Su ; Kim, Byung Hong ; Chung, Tai Hak. / Responses from freshwater sediment during electricity generation using microbial fuel cells. In: Bioprocess and Biosystems Engineering. 2009 ; Vol. 32, No. 3. pp. 389-395.
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