Comparison of complex effluent treatability in different bench scale microbial electrolysis cells

Mark L. Ullery; Bruce E. Logan

doi:10.1016/j.biortech.2014.08.028

Comparison of complex effluent treatability in different bench scale microbial electrolysis cells

Mark L. Ullery, Bruce E. Logan

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

18 Scopus citations

Abstract

A range of wastewaters and substrates were examined using mini microbial electrolysis cells (mini MECs) to see if they could be used to predict the performance of larger-scale cube MECs. COD removals and coulombic efficiencies corresponded well between the two reactor designs for individual samples, with 66-92% of COD removed for all samples. Current generation was consistent between the reactor types for acetate (AC) and fermentation effluent (FE) samples, but less consistent with industrial (IW) and domestic wastewaters (DW). Hydrogen was recovered from all samples in cube MECs, but gas composition and volume varied significantly between samples. Evidence for direct conversion of substrate to methane was observed with two of the industrial wastewater samples (IW-1 and IW-3). Overall, mini MECs provided organic treatment data that corresponded well with larger scale reactor results, and therefore it was concluded that they can be a useful platform for screening wastewater sources.

Original language	English (US)
Pages (from-to)	530-537
Number of pages	8
Journal	Bioresource technology
Volume	170
DOIs	https://doi.org/10.1016/j.biortech.2014.08.028
State	Published - Oct 2014

All Science Journal Classification (ASJC) codes

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2014.08.028

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title = "Comparison of complex effluent treatability in different bench scale microbial electrolysis cells",

abstract = "A range of wastewaters and substrates were examined using mini microbial electrolysis cells (mini MECs) to see if they could be used to predict the performance of larger-scale cube MECs. COD removals and coulombic efficiencies corresponded well between the two reactor designs for individual samples, with 66-92% of COD removed for all samples. Current generation was consistent between the reactor types for acetate (AC) and fermentation effluent (FE) samples, but less consistent with industrial (IW) and domestic wastewaters (DW). Hydrogen was recovered from all samples in cube MECs, but gas composition and volume varied significantly between samples. Evidence for direct conversion of substrate to methane was observed with two of the industrial wastewater samples (IW-1 and IW-3). Overall, mini MECs provided organic treatment data that corresponded well with larger scale reactor results, and therefore it was concluded that they can be a useful platform for screening wastewater sources.",

author = "Ullery, {Mark L.} and Logan, {Bruce E.}",

note = "Funding Information: The authors would like to thank Air Products and Chemicals Inc. (APCI) and Pin-Ching Maness and Lauren Magnusson at the National Renewable Energy Lab (NREL) for providing effluent samples. This work was supported by Department of Energy Cooperative Agreement DE-EE0005750 and award KUS-11-003-13 from the King Abdullah University of Science and Technology (KAUST). ",

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doi = "10.1016/j.biortech.2014.08.028",

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AU - Ullery, Mark L.

AU - Logan, Bruce E.

N1 - Funding Information: The authors would like to thank Air Products and Chemicals Inc. (APCI) and Pin-Ching Maness and Lauren Magnusson at the National Renewable Energy Lab (NREL) for providing effluent samples. This work was supported by Department of Energy Cooperative Agreement DE-EE0005750 and award KUS-11-003-13 from the King Abdullah University of Science and Technology (KAUST).

PY - 2014/10

Y1 - 2014/10

N2 - A range of wastewaters and substrates were examined using mini microbial electrolysis cells (mini MECs) to see if they could be used to predict the performance of larger-scale cube MECs. COD removals and coulombic efficiencies corresponded well between the two reactor designs for individual samples, with 66-92% of COD removed for all samples. Current generation was consistent between the reactor types for acetate (AC) and fermentation effluent (FE) samples, but less consistent with industrial (IW) and domestic wastewaters (DW). Hydrogen was recovered from all samples in cube MECs, but gas composition and volume varied significantly between samples. Evidence for direct conversion of substrate to methane was observed with two of the industrial wastewater samples (IW-1 and IW-3). Overall, mini MECs provided organic treatment data that corresponded well with larger scale reactor results, and therefore it was concluded that they can be a useful platform for screening wastewater sources.

AB - A range of wastewaters and substrates were examined using mini microbial electrolysis cells (mini MECs) to see if they could be used to predict the performance of larger-scale cube MECs. COD removals and coulombic efficiencies corresponded well between the two reactor designs for individual samples, with 66-92% of COD removed for all samples. Current generation was consistent between the reactor types for acetate (AC) and fermentation effluent (FE) samples, but less consistent with industrial (IW) and domestic wastewaters (DW). Hydrogen was recovered from all samples in cube MECs, but gas composition and volume varied significantly between samples. Evidence for direct conversion of substrate to methane was observed with two of the industrial wastewater samples (IW-1 and IW-3). Overall, mini MECs provided organic treatment data that corresponded well with larger scale reactor results, and therefore it was concluded that they can be a useful platform for screening wastewater sources.

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Comparison of complex effluent treatability in different bench scale microbial electrolysis cells

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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