Performance of two different types of anodes in membrane electrode assembly microbial fuel cells for power generation from domestic wastewater

Sarah Hays; Fang Zhang; Bruce E. Logan

doi:10.1016/j.jpowsour.2011.06.027

Performance of two different types of anodes in membrane electrode assembly microbial fuel cells for power generation from domestic wastewater

Sarah Hays, Fang Zhang, Bruce E. Logan

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

Abstract

Graphite fiber brush electrodes provide high surface areas for exoelectrogenic bacteria in microbial fuel cells (MFCs), but the cylindrical brush format limits more compact reactor designs. To enable MFC designs with closer electrode spacing, brush anodes were pressed up against a separator (placed between the electrodes) to reduce the volume occupied by the brush. Higher maximum voltages were produced using domestic wastewater (COD = 390 ± 89 mg L-1) with brush anodes (360 ± 63 mV, 1000 Ω) than woven carbon mesh anodes (200 ± 81 mV) with one or two separators. Maximum power densities were similar for brush anode reactors with one or two separators after 30 days (220 ± 1.2 and 240 ± 22 mW m-2), but with one separator the brush anode MFC power decreased to 130 ± 55 mW m-2 after 114 days. Power densities in MFCs with mesh anodes were very low (

Original language	English (US)
Pages (from-to)	8293-8300
Number of pages	8
Journal	Journal of Power Sources
Volume	196
Issue number	20
DOIs	https://doi.org/10.1016/j.jpowsour.2011.06.027
State	Published - Oct 2011
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-I1-003-13
Acknowledgements: We thank Deepak Pant and VITO, the Flemish Institute for Technological Research, for donating the AC cathodes used in this study. This research was supported by the King Abdullah University of Science and Technology (KAUST) (Award KUS-I1-003-13).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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10.1016/j.jpowsour.2011.06.027

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title = "Performance of two different types of anodes in membrane electrode assembly microbial fuel cells for power generation from domestic wastewater",

abstract = "Graphite fiber brush electrodes provide high surface areas for exoelectrogenic bacteria in microbial fuel cells (MFCs), but the cylindrical brush format limits more compact reactor designs. To enable MFC designs with closer electrode spacing, brush anodes were pressed up against a separator (placed between the electrodes) to reduce the volume occupied by the brush. Higher maximum voltages were produced using domestic wastewater (COD = 390 ± 89 mg L-1) with brush anodes (360 ± 63 mV, 1000 Ω) than woven carbon mesh anodes (200 ± 81 mV) with one or two separators. Maximum power densities were similar for brush anode reactors with one or two separators after 30 days (220 ± 1.2 and 240 ± 22 mW m-2), but with one separator the brush anode MFC power decreased to 130 ± 55 mW m-2 after 114 days. Power densities in MFCs with mesh anodes were very low (",

author = "Sarah Hays and Fang Zhang and Logan, {Bruce E.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-I1-003-13 Acknowledgements: We thank Deepak Pant and VITO, the Flemish Institute for Technological Research, for donating the AC cathodes used in this study. This research was supported by the King Abdullah University of Science and Technology (KAUST) (Award KUS-I1-003-13). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

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doi = "10.1016/j.jpowsour.2011.06.027",

language = "English (US)",

volume = "196",

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AU - Logan, Bruce E.

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PY - 2011/10

Y1 - 2011/10

N2 - Graphite fiber brush electrodes provide high surface areas for exoelectrogenic bacteria in microbial fuel cells (MFCs), but the cylindrical brush format limits more compact reactor designs. To enable MFC designs with closer electrode spacing, brush anodes were pressed up against a separator (placed between the electrodes) to reduce the volume occupied by the brush. Higher maximum voltages were produced using domestic wastewater (COD = 390 ± 89 mg L-1) with brush anodes (360 ± 63 mV, 1000 Ω) than woven carbon mesh anodes (200 ± 81 mV) with one or two separators. Maximum power densities were similar for brush anode reactors with one or two separators after 30 days (220 ± 1.2 and 240 ± 22 mW m-2), but with one separator the brush anode MFC power decreased to 130 ± 55 mW m-2 after 114 days. Power densities in MFCs with mesh anodes were very low (

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Performance of two different types of anodes in membrane electrode assembly microbial fuel cells for power generation from domestic wastewater

Abstract

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