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High rate copper and energy recovery in microbial fuel cells
Bioelectrochemical systems (BESs) are a novel, promising technology for the recovery of metals. The prerequisite for upscaling from laboratory to industrial size is that high current and high power densities can be produced. In this study we report the recovery of copper from a copper sulfate stream...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4473641/ https://www.ncbi.nlm.nih.gov/pubmed/26150802 http://dx.doi.org/10.3389/fmicb.2015.00527 |
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author | Rodenas Motos, Pau ter Heijne, Annemiek van der Weijden, Renata Saakes, Michel Buisman, Cees J. N. Sleutels, Tom H. J. A. |
author_facet | Rodenas Motos, Pau ter Heijne, Annemiek van der Weijden, Renata Saakes, Michel Buisman, Cees J. N. Sleutels, Tom H. J. A. |
author_sort | Rodenas Motos, Pau |
collection | PubMed |
description | Bioelectrochemical systems (BESs) are a novel, promising technology for the recovery of metals. The prerequisite for upscaling from laboratory to industrial size is that high current and high power densities can be produced. In this study we report the recovery of copper from a copper sulfate stream (2 g L(-1) Cu(2+)) using a laboratory scale BES at high rate. To achieve this, we used a novel cell configuration to reduce the internal voltage losses of the system. At the anode, electroactive microorganisms produce electrons at the surface of an electrode, which generates a stable cell voltage of 485 mV when combined with a cathode where copper is reduced. In this system, a maximum current density of 23 A m(-2) in combination with a power density of 5.5 W m(-2) was produced. XRD analysis confirmed 99% purity in copper of copper deposited onto cathode surface. Analysis of voltage losses showed that at the highest current, most voltage losses occurred at the cathode, and membrane, while anode losses had the lowest contribution to the total voltage loss. These results encourage further development of BESs for bioelectrochemical metal recovery. |
format | Online Article Text |
id | pubmed-4473641 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-44736412015-07-06 High rate copper and energy recovery in microbial fuel cells Rodenas Motos, Pau ter Heijne, Annemiek van der Weijden, Renata Saakes, Michel Buisman, Cees J. N. Sleutels, Tom H. J. A. Front Microbiol Microbiology Bioelectrochemical systems (BESs) are a novel, promising technology for the recovery of metals. The prerequisite for upscaling from laboratory to industrial size is that high current and high power densities can be produced. In this study we report the recovery of copper from a copper sulfate stream (2 g L(-1) Cu(2+)) using a laboratory scale BES at high rate. To achieve this, we used a novel cell configuration to reduce the internal voltage losses of the system. At the anode, electroactive microorganisms produce electrons at the surface of an electrode, which generates a stable cell voltage of 485 mV when combined with a cathode where copper is reduced. In this system, a maximum current density of 23 A m(-2) in combination with a power density of 5.5 W m(-2) was produced. XRD analysis confirmed 99% purity in copper of copper deposited onto cathode surface. Analysis of voltage losses showed that at the highest current, most voltage losses occurred at the cathode, and membrane, while anode losses had the lowest contribution to the total voltage loss. These results encourage further development of BESs for bioelectrochemical metal recovery. Frontiers Media S.A. 2015-06-19 /pmc/articles/PMC4473641/ /pubmed/26150802 http://dx.doi.org/10.3389/fmicb.2015.00527 Text en Copyright © 2015 Rodenas Motos, ter Heijne, van der Weijden, Saakes, Buisman and Sleutels. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Microbiology Rodenas Motos, Pau ter Heijne, Annemiek van der Weijden, Renata Saakes, Michel Buisman, Cees J. N. Sleutels, Tom H. J. A. High rate copper and energy recovery in microbial fuel cells |
title | High rate copper and energy recovery in microbial fuel cells |
title_full | High rate copper and energy recovery in microbial fuel cells |
title_fullStr | High rate copper and energy recovery in microbial fuel cells |
title_full_unstemmed | High rate copper and energy recovery in microbial fuel cells |
title_short | High rate copper and energy recovery in microbial fuel cells |
title_sort | high rate copper and energy recovery in microbial fuel cells |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4473641/ https://www.ncbi.nlm.nih.gov/pubmed/26150802 http://dx.doi.org/10.3389/fmicb.2015.00527 |
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