Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/8211 |
Resumo: | Electrochemical treatment of oleate using RuO2 and IrO2 type dimensionally stable anodes in alkaline medium was performed to develop a feasible anaerobic pre-treatment of fatty effluents. The results showed that the pre-treated solutions over RuO2 were faster degraded by anaerobic consortium than the raw oleate solutions or the electrolysed solutions using IrO2. In batch experiments carried out with pre-treated solutions over RuO2 (100–500 mg/L), no lag phases were observed before the methane production onset. On the other hand, raw oleate and pre-treated oleate over IrO2 had originated lag phases of 0–140 and 0–210 h, respectively. This study demonstrated that it is advantageous to apply the electrochemical treatment carried out on the RuO2 type DSA in order to achieve a faster biodegradation of lipid-containing effluent and consequently to obtain a faster methane production. |
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Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodesAnodic oxidationLong chain fatty acidsWastewaterBiodegradationToxicityScience & TechnologyElectrochemical treatment of oleate using RuO2 and IrO2 type dimensionally stable anodes in alkaline medium was performed to develop a feasible anaerobic pre-treatment of fatty effluents. The results showed that the pre-treated solutions over RuO2 were faster degraded by anaerobic consortium than the raw oleate solutions or the electrolysed solutions using IrO2. In batch experiments carried out with pre-treated solutions over RuO2 (100–500 mg/L), no lag phases were observed before the methane production onset. On the other hand, raw oleate and pre-treated oleate over IrO2 had originated lag phases of 0–140 and 0–210 h, respectively. This study demonstrated that it is advantageous to apply the electrochemical treatment carried out on the RuO2 type DSA in order to achieve a faster biodegradation of lipid-containing effluent and consequently to obtain a faster methane production.ELTECH Systems Corporation.Fundação para a Ciência e Tecnologia (FCT)Elsevier Ltd.Universidade do MinhoGonçalves, M. M.Alves, M. M.Correia, J. P.Marques, I. P.2008-112008-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/8211eng"Bioresource Technology". ISSN 0960-8524. 99:17 (Nov. 2006) 8207-8211.0960-852410.1016/j.biortech.2008.03.02218448332info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:11:58Zoai:repositorium.sdum.uminho.pt:1822/8211Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:03:48.772057Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes |
title |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes |
spellingShingle |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes Gonçalves, M. M. Anodic oxidation Long chain fatty acids Wastewater Biodegradation Toxicity Science & Technology |
title_short |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes |
title_full |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes |
title_fullStr |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes |
title_full_unstemmed |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes |
title_sort |
Electrooxidation as the anaerobic pre-treatment of fats: Oleate conversion using RuO2 and IrO2 based anodes |
author |
Gonçalves, M. M. |
author_facet |
Gonçalves, M. M. Alves, M. M. Correia, J. P. Marques, I. P. |
author_role |
author |
author2 |
Alves, M. M. Correia, J. P. Marques, I. P. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Gonçalves, M. M. Alves, M. M. Correia, J. P. Marques, I. P. |
dc.subject.por.fl_str_mv |
Anodic oxidation Long chain fatty acids Wastewater Biodegradation Toxicity Science & Technology |
topic |
Anodic oxidation Long chain fatty acids Wastewater Biodegradation Toxicity Science & Technology |
description |
Electrochemical treatment of oleate using RuO2 and IrO2 type dimensionally stable anodes in alkaline medium was performed to develop a feasible anaerobic pre-treatment of fatty effluents. The results showed that the pre-treated solutions over RuO2 were faster degraded by anaerobic consortium than the raw oleate solutions or the electrolysed solutions using IrO2. In batch experiments carried out with pre-treated solutions over RuO2 (100–500 mg/L), no lag phases were observed before the methane production onset. On the other hand, raw oleate and pre-treated oleate over IrO2 had originated lag phases of 0–140 and 0–210 h, respectively. This study demonstrated that it is advantageous to apply the electrochemical treatment carried out on the RuO2 type DSA in order to achieve a faster biodegradation of lipid-containing effluent and consequently to obtain a faster methane production. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-11 2008-11-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/8211 |
url |
http://hdl.handle.net/1822/8211 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"Bioresource Technology". ISSN 0960-8524. 99:17 (Nov. 2006) 8207-8211. 0960-8524 10.1016/j.biortech.2008.03.022 18448332 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Ltd. |
publisher.none.fl_str_mv |
Elsevier Ltd. |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132445495263232 |