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description Publicationkeyboard_double_arrow_right Article , Journal 2014 FrancePublisher:Elsevier BV Eric Fourest; Marie Bertrand; Stephanie F. Ketep; Mohamed Barakat; Mohamed Barakat; Alain Bergel; Wafa Achouak; Wafa Achouak;pmid: 24862005
Microbial anodes were formed under polarization at -0.3 V/SCE on graphite plates in effluents from a pulp and paper mill. The bioanodes formed with the addition of acetate led to the highest current densities (up to 6A/m(2)) but were then unable to oxidize the raw effluent efficiently (0.5A/m(2)). In contrast, the bioanodes formed without acetate addition were fully able to oxidize the organic matter contained in the effluent, giving up to 4.5A/m(2) in continuous mode. Bacterial communities showed less bacterial diversity for the acetate-fed bioanodes compared to those formed in raw effluents. Deltaproteobacteria were the most abundant taxonomic group, with a high diversity for bioanodes formed without acetate addition but with almost 100% Desulfuromonas for the acetate-fed bioanodes. The addition of acetate to form the microbial anodes induced microbial selection, which was detrimental to the treatment of the raw effluent.
Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2014 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2014 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2014Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2014.04.088&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 10 citations 10 popularity Top 10% influence Average impulse Average Powered by BIP!
visibility 49visibility views 49 download downloads 19 Powered bymore_vert Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2014 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2014 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2014Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2014.04.088&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2017 FrancePublisher:Elsevier BV Mickaël Rimboud; Mickaël Rimboud; Alain Bergel; Mohamed Barakat; Benjamin Erable;pmid: 28364576
Six biocathodes catalyzing oxygen reduction were designed from the same environmental inoculum but using three different methods. Two were formed freely at open circuit potential, two using conventional aerobic polarization at -0.2V/SCE and two by reversion of already established acetate-fed bioanodes. Observation of the biofilms by SEM and epifluorescence microscopy revealed that reversible bioelectrodes had the densest biofilms. Electrochemical characterization revealed two different redox systems for oxygen reduction, at -0.30 and +0.23V/SCE. The biocathodes formed under aerobic polarization gave higher electrocalatytic performance for O2 reduction, due to production of the redox systems at +0.23V/SCE. Analyses of the bacterial communities on the biocathodes by 16S-rRNA pyrosequencing showed different selection (or enrichment) of microorganisms depending on the method used. This study highlights how the method chosen for designing oxygen biocathodes can affect the cathode coverage, the selection of bacterial populations and the electrochemical performance.
Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2017 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2017 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2017Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.bioelechem.2017.03.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 24 citations 24 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
visibility 20visibility views 20 download downloads 24 Powered bymore_vert Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2017 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2017 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2017Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.bioelechem.2017.03.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu
description Publicationkeyboard_double_arrow_right Article , Journal 2014 FrancePublisher:Elsevier BV Eric Fourest; Marie Bertrand; Stephanie F. Ketep; Mohamed Barakat; Mohamed Barakat; Alain Bergel; Wafa Achouak; Wafa Achouak;pmid: 24862005
Microbial anodes were formed under polarization at -0.3 V/SCE on graphite plates in effluents from a pulp and paper mill. The bioanodes formed with the addition of acetate led to the highest current densities (up to 6A/m(2)) but were then unable to oxidize the raw effluent efficiently (0.5A/m(2)). In contrast, the bioanodes formed without acetate addition were fully able to oxidize the organic matter contained in the effluent, giving up to 4.5A/m(2) in continuous mode. Bacterial communities showed less bacterial diversity for the acetate-fed bioanodes compared to those formed in raw effluents. Deltaproteobacteria were the most abundant taxonomic group, with a high diversity for bioanodes formed without acetate addition but with almost 100% Desulfuromonas for the acetate-fed bioanodes. The addition of acetate to form the microbial anodes induced microbial selection, which was detrimental to the treatment of the raw effluent.
Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2014 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2014 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2014Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2014.04.088&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 10 citations 10 popularity Top 10% influence Average impulse Average Powered by BIP!
visibility 49visibility views 49 download downloads 19 Powered bymore_vert Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2014 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2014 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2014Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.biortech.2014.04.088&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2017 FrancePublisher:Elsevier BV Mickaël Rimboud; Mickaël Rimboud; Alain Bergel; Mohamed Barakat; Benjamin Erable;pmid: 28364576
Six biocathodes catalyzing oxygen reduction were designed from the same environmental inoculum but using three different methods. Two were formed freely at open circuit potential, two using conventional aerobic polarization at -0.2V/SCE and two by reversion of already established acetate-fed bioanodes. Observation of the biofilms by SEM and epifluorescence microscopy revealed that reversible bioelectrodes had the densest biofilms. Electrochemical characterization revealed two different redox systems for oxygen reduction, at -0.30 and +0.23V/SCE. The biocathodes formed under aerobic polarization gave higher electrocalatytic performance for O2 reduction, due to production of the redox systems at +0.23V/SCE. Analyses of the bacterial communities on the biocathodes by 16S-rRNA pyrosequencing showed different selection (or enrichment) of microorganisms depending on the method used. This study highlights how the method chosen for designing oxygen biocathodes can affect the cathode coverage, the selection of bacterial populations and the electrochemical performance.
Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2017 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2017 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2017Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.bioelechem.2017.03.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 24 citations 24 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
visibility 20visibility views 20 download downloads 24 Powered bymore_vert Open Archive Toulous... arrow_drop_down Open Archive Toulouse Archive OuverteArticle . 2017 . Peer-reviewedData sources: Open Archive Toulouse Archive OuverteInstitut National Polytechnique de Toulouse (Theses)Article . 2017 . Peer-reviewedData sources: Institut National Polytechnique de Toulouse (Theses)OATAO (Open Archive Toulouse Archive Ouverte - Université de Toulouse)Article . 2017Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.bioelechem.2017.03.001&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu