Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill

Detalhes bibliográficos
Autor(a) principal: Norma,D.
Data de Publicação: 2012
Outros Autores: Fernandes,A., Pacheco,M.J., Ciríaco,L., Lopes,A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300006
Resumo: The electrochemical treatment of leachate samples from a Portuguese intermunicipal sanitary landfill was carried out using combined electrocoagulation/anodic oxidation processes. The electrocoagulation (EC) was performed with iron consumable anodes, at different initial pH, with and without stirring, at different applied potentials. In the anodic oxidation (AO) assays, a boron-doped diamond anode was used and applied current densities of 10 to 30 mA/cm² were tested. The influence of the experimental conditions of the electrocoagulation pretreatment on the anodic oxidation performance was also assessed. In the EC assays the lowest iron and energy consumptions per mass of organic load removed were obtained at initial pH of 4 in the unstirred assays. In the combined treatments, the highest average current efficiency in the anodic oxidation was obtained for the samples with EC pretreatment performed at pH of 6. For the combined treatment with EC pretreatment run at natural pH of 8.6, an increase in AO current density led to a decrease in average current efficiency.
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spelling Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfilllandfill leachateelectrochemical treatmentselectrocoagulationanodic oxidationBDDThe electrochemical treatment of leachate samples from a Portuguese intermunicipal sanitary landfill was carried out using combined electrocoagulation/anodic oxidation processes. The electrocoagulation (EC) was performed with iron consumable anodes, at different initial pH, with and without stirring, at different applied potentials. In the anodic oxidation (AO) assays, a boron-doped diamond anode was used and applied current densities of 10 to 30 mA/cm² were tested. The influence of the experimental conditions of the electrocoagulation pretreatment on the anodic oxidation performance was also assessed. In the EC assays the lowest iron and energy consumptions per mass of organic load removed were obtained at initial pH of 4 in the unstirred assays. In the combined treatments, the highest average current efficiency in the anodic oxidation was obtained for the samples with EC pretreatment performed at pH of 6. For the combined treatment with EC pretreatment run at natural pH of 8.6, an increase in AO current density led to a decrease in average current efficiency.Sociedade Portuguesa de Electroquímica2012-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300006Portugaliae Electrochimica Acta v.30 n.3 2012reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300006Norma,D.Fernandes,A.Pacheco,M.J.Ciríaco,L.Lopes,A.info:eu-repo/semantics/openAccess2024-02-06T17:07:10Zoai:scielo:S0872-19042012000300006Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:12.519993Repositório 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 Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
title Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
spellingShingle Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
Norma,D.
landfill leachate
electrochemical treatments
electrocoagulation
anodic oxidation
BDD
title_short Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
title_full Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
title_fullStr Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
title_full_unstemmed Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
title_sort Electrocoagulation and Anodic Oxidation Integrated Process to Treat Leachate from a Portuguese Sanitary Landfill
author Norma,D.
author_facet Norma,D.
Fernandes,A.
Pacheco,M.J.
Ciríaco,L.
Lopes,A.
author_role author
author2 Fernandes,A.
Pacheco,M.J.
Ciríaco,L.
Lopes,A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Norma,D.
Fernandes,A.
Pacheco,M.J.
Ciríaco,L.
Lopes,A.
dc.subject.por.fl_str_mv landfill leachate
electrochemical treatments
electrocoagulation
anodic oxidation
BDD
topic landfill leachate
electrochemical treatments
electrocoagulation
anodic oxidation
BDD
description The electrochemical treatment of leachate samples from a Portuguese intermunicipal sanitary landfill was carried out using combined electrocoagulation/anodic oxidation processes. The electrocoagulation (EC) was performed with iron consumable anodes, at different initial pH, with and without stirring, at different applied potentials. In the anodic oxidation (AO) assays, a boron-doped diamond anode was used and applied current densities of 10 to 30 mA/cm² were tested. The influence of the experimental conditions of the electrocoagulation pretreatment on the anodic oxidation performance was also assessed. In the EC assays the lowest iron and energy consumptions per mass of organic load removed were obtained at initial pH of 4 in the unstirred assays. In the combined treatments, the highest average current efficiency in the anodic oxidation was obtained for the samples with EC pretreatment performed at pH of 6. For the combined treatment with EC pretreatment run at natural pH of 8.6, an increase in AO current density led to a decrease in average current efficiency.
publishDate 2012
dc.date.none.fl_str_mv 2012-05-01
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300006
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
dc.source.none.fl_str_mv Portugaliae Electrochimica Acta v.30 n.3 2012
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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