Hydrogen peroxide production in a pilot-scale microbial electrolysis cell
A pilot-scale dual-chamber microbial electrolysis cell (MEC) equipped with a carbon gas-diffusion cathode was evaluated for H2O2 production using acetate medium as the electron donor. To assess the effect of cathodic pH on H2O2 yield, the MEC was tested with an anion exchange membrane (AEM) and a ca...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018-09-01
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| Series: | Biotechnology Reports |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215017X18300523 |
| _version_ | 1818920729981222912 |
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| author | Junyoung Sim Robertson Reid Abid Hussain Junyeong An Hyung-Sool Lee |
| author_facet | Junyoung Sim Robertson Reid Abid Hussain Junyeong An Hyung-Sool Lee |
| author_sort | Junyoung Sim |
| collection | DOAJ |
| description | A pilot-scale dual-chamber microbial electrolysis cell (MEC) equipped with a carbon gas-diffusion cathode was evaluated for H2O2 production using acetate medium as the electron donor. To assess the effect of cathodic pH on H2O2 yield, the MEC was tested with an anion exchange membrane (AEM) and a cation exchange membrane (CEM), respectively. The maximum current density reached 0.94–0.96 A/m2 in the MEC at applied voltage of 0.35–1.9 V, regardless of membranes. The highest H2O2 conversion efficiency was only 7.2 ± 0.09% for the CEM-MEC. This low conversion would be due to further H2O2 reduction to H2O on the cathode or H2O2 decomposition in bulk liquid. This low H2O2 conversion indicates that large-scale MECs are not ideal for production of concentrated H2O2 but could be useful for a sustainable in-situ oxidation process in wastewater treatment. Keywords: Hydrogen peroxide, Microbial electrolysis cells, Pilot tests, Peroxide loss, Decomposition |
| first_indexed | 2024-12-20T01:26:23Z |
| format | Article |
| id | doaj.art-4dfac4be12824b408edcf3647a0df712 |
| institution | Directory Open Access Journal |
| issn | 2215-017X |
| language | English |
| last_indexed | 2024-12-20T01:26:23Z |
| publishDate | 2018-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Biotechnology Reports |
| spelling | doaj.art-4dfac4be12824b408edcf3647a0df7122022-12-21T19:58:13ZengElsevierBiotechnology Reports2215-017X2018-09-0119Hydrogen peroxide production in a pilot-scale microbial electrolysis cellJunyoung Sim0Robertson Reid1Abid Hussain2Junyeong An3Hyung-Sool Lee4Department of Civil and Environmental Engineering, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, CanadaDepartment of Civil and Environmental Engineering, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, CanadaDepartment of Civil and Environmental Engineering, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, Canada; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporeDepartment of Civil and Environmental Engineering, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, CanadaDepartment of Civil and Environmental Engineering, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, Canada; Corresponding author.A pilot-scale dual-chamber microbial electrolysis cell (MEC) equipped with a carbon gas-diffusion cathode was evaluated for H2O2 production using acetate medium as the electron donor. To assess the effect of cathodic pH on H2O2 yield, the MEC was tested with an anion exchange membrane (AEM) and a cation exchange membrane (CEM), respectively. The maximum current density reached 0.94–0.96 A/m2 in the MEC at applied voltage of 0.35–1.9 V, regardless of membranes. The highest H2O2 conversion efficiency was only 7.2 ± 0.09% for the CEM-MEC. This low conversion would be due to further H2O2 reduction to H2O on the cathode or H2O2 decomposition in bulk liquid. This low H2O2 conversion indicates that large-scale MECs are not ideal for production of concentrated H2O2 but could be useful for a sustainable in-situ oxidation process in wastewater treatment. Keywords: Hydrogen peroxide, Microbial electrolysis cells, Pilot tests, Peroxide loss, Decompositionhttp://www.sciencedirect.com/science/article/pii/S2215017X18300523 |
| spellingShingle | Junyoung Sim Robertson Reid Abid Hussain Junyeong An Hyung-Sool Lee Hydrogen peroxide production in a pilot-scale microbial electrolysis cell Biotechnology Reports |
| title | Hydrogen peroxide production in a pilot-scale microbial electrolysis cell |
| title_full | Hydrogen peroxide production in a pilot-scale microbial electrolysis cell |
| title_fullStr | Hydrogen peroxide production in a pilot-scale microbial electrolysis cell |
| title_full_unstemmed | Hydrogen peroxide production in a pilot-scale microbial electrolysis cell |
| title_short | Hydrogen peroxide production in a pilot-scale microbial electrolysis cell |
| title_sort | hydrogen peroxide production in a pilot scale microbial electrolysis cell |
| url | http://www.sciencedirect.com/science/article/pii/S2215017X18300523 |
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