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Description: Book cover
Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates
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Description: Book cover
Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates

Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates

Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates

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Description: Book cover
Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates
Abstract
Engineering the ecology of microbial fuel cell anode biofilms was attempted through manipulation of the external resistance, which alters the effective anode availability as an electron acceptor and was expected to influence competition between exoelectrogens and methanogens. Anode bacterial communities evolved when the external resistance was changed, while the communities in those systems with fixed resistance remained stable. However, community evolution was only among functionally similar exoelectrogens, with 105-106 copies of Geobacteraceae 16S rRNA genes detected in 2 cm2 anode samples. The strict aceticlastic methanogen Methanosaetaceae was the dominant methanogen, and 103-104 copies of total methanogenic archaeal 16S rRNA genes were detected in the same area. Anode biofilms that had acclimated under high external resistance generated a higher maximum current density. Biogas composition analysis showed that the molar ratio of CH4 to CO2 decreased with decreasing applied external resistances, due to increasing availability of the electrode as an electron acceptor.
Engineering the ecology of microbial fuel cell anode biofilms was attempted through manipulation of the external resistance, which alters the effective anode availability as an electron acceptor and was expected to influence competition between exoelectrogens and methanogens. Anode bacterial communities evolved when the external resistance was changed, while the communities in those systems with...
Author(s)
Sokhee JungJohn M. Regan
SourceProceedings of the Water Environment Federation
SubjectSession 22: AEESP Lecture and Microbial Fuel Cells
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2008
ISSN1938-6478
SICI1938-6478(20080101)2008:15L.1598;1-
DOI10.2175/193864708788733855
Volume / Issue2008 / 15
Content sourceWEFTEC
First / last page(s)1598 - 1603
Copyright2008
Word count167

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Description: Book cover
Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates
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Description: Book cover
Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates
Abstract
Engineering the ecology of microbial fuel cell anode biofilms was attempted through manipulation of the external resistance, which alters the effective anode availability as an electron acceptor and was expected to influence competition between exoelectrogens and methanogens. Anode bacterial communities evolved when the external resistance was changed, while the communities in those systems with fixed resistance remained stable. However, community evolution was only among functionally similar exoelectrogens, with 105-106 copies of Geobacteraceae 16S rRNA genes detected in 2 cm2 anode samples. The strict aceticlastic methanogen Methanosaetaceae was the dominant methanogen, and 103-104 copies of total methanogenic archaeal 16S rRNA genes were detected in the same area. Anode biofilms that had acclimated under high external resistance generated a higher maximum current density. Biogas composition analysis showed that the molar ratio of CH4 to CO2 decreased with decreasing applied external resistances, due to increasing availability of the electrode as an electron acceptor.
Engineering the ecology of microbial fuel cell anode biofilms was attempted through manipulation of the external resistance, which alters the effective anode availability as an electron acceptor and was expected to influence competition between exoelectrogens and methanogens. Anode bacterial communities evolved when the external resistance was changed, while the communities in those systems with...
Author(s)
Sokhee JungJohn M. Regan
SourceProceedings of the Water Environment Federation
SubjectSession 22: AEESP Lecture and Microbial Fuel Cells
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2008
ISSN1938-6478
SICI1938-6478(20080101)2008:15L.1598;1-
DOI10.2175/193864708788733855
Volume / Issue2008 / 15
Content sourceWEFTEC
First / last page(s)1598 - 1603
Copyright2008
Word count167

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Sokhee Jung# John M. Regan. Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Web. 2 Oct. 2025. <https://www.accesswater.org?id=-295158CITANCHOR>.
Sokhee Jung# John M. Regan. Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Accessed October 2, 2025. https://www.accesswater.org/?id=-295158CITANCHOR.
Sokhee Jung# John M. Regan
Comparison of Microbial Composition and System Performance in Microbial Fuel Cells Operated with Different Resistances and Substrates
Access Water
Water Environment Federation
December 22, 2018
October 2, 2025
https://www.accesswater.org/?id=-295158CITANCHOR