Zn-edta degradation by catechol-driven fenton reaction

Detalhes bibliográficos
Autor(a) principal: Oviedo,Claudia
Data de Publicação: 2012
Outros Autores: Berrocal,Alexander, Navarrete,José, Mansilla,Héctor, Contreras,David
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900013
Resumo: Zn-EDTA degradabilty by catechol-driven Fenton reaction was studied. Response surface methodology central composite design was employed to maximize this complex degradation. Theoretical speciation calculations were in good agreement with the experimental results. Fenton and Fenton type treatments are typically thought to be applicable only in the highly acidic range, representing a major operational constraint. Interestingly, at optimized concentrations, this CAT-driven Fenton reaction at pH 5.5 achieved 100% Zn-EDTA degradation; 60% COD and 17% TOC removals, using tiny amounts of CAT (50 µM), Fe(III) (445 µM) and H2O2 (20 mM) with no evident ferric sludge.
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spelling Zn-edta degradation by catechol-driven fenton reactioncathecol-driven FentontreatmentZn-EDTAZn-EDTA degradabilty by catechol-driven Fenton reaction was studied. Response surface methodology central composite design was employed to maximize this complex degradation. Theoretical speciation calculations were in good agreement with the experimental results. Fenton and Fenton type treatments are typically thought to be applicable only in the highly acidic range, representing a major operational constraint. Interestingly, at optimized concentrations, this CAT-driven Fenton reaction at pH 5.5 achieved 100% Zn-EDTA degradation; 60% COD and 17% TOC removals, using tiny amounts of CAT (50 µM), Fe(III) (445 µM) and H2O2 (20 mM) with no evident ferric sludge.Sociedade Brasileira de Química2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900013Química Nova v.35 n.9 2012reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422012000900013info:eu-repo/semantics/openAccessOviedo,ClaudiaBerrocal,AlexanderNavarrete,JoséMansilla,HéctorContreras,Davideng2012-10-05T00:00:00Zoai:scielo:S0100-40422012000900013Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2012-10-05T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Zn-edta degradation by catechol-driven fenton reaction
title Zn-edta degradation by catechol-driven fenton reaction
spellingShingle Zn-edta degradation by catechol-driven fenton reaction
Oviedo,Claudia
cathecol-driven Fenton
treatment
Zn-EDTA
title_short Zn-edta degradation by catechol-driven fenton reaction
title_full Zn-edta degradation by catechol-driven fenton reaction
title_fullStr Zn-edta degradation by catechol-driven fenton reaction
title_full_unstemmed Zn-edta degradation by catechol-driven fenton reaction
title_sort Zn-edta degradation by catechol-driven fenton reaction
author Oviedo,Claudia
author_facet Oviedo,Claudia
Berrocal,Alexander
Navarrete,José
Mansilla,Héctor
Contreras,David
author_role author
author2 Berrocal,Alexander
Navarrete,José
Mansilla,Héctor
Contreras,David
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Oviedo,Claudia
Berrocal,Alexander
Navarrete,José
Mansilla,Héctor
Contreras,David
dc.subject.por.fl_str_mv cathecol-driven Fenton
treatment
Zn-EDTA
topic cathecol-driven Fenton
treatment
Zn-EDTA
description Zn-EDTA degradabilty by catechol-driven Fenton reaction was studied. Response surface methodology central composite design was employed to maximize this complex degradation. Theoretical speciation calculations were in good agreement with the experimental results. Fenton and Fenton type treatments are typically thought to be applicable only in the highly acidic range, representing a major operational constraint. Interestingly, at optimized concentrations, this CAT-driven Fenton reaction at pH 5.5 achieved 100% Zn-EDTA degradation; 60% COD and 17% TOC removals, using tiny amounts of CAT (50 µM), Fe(III) (445 µM) and H2O2 (20 mM) with no evident ferric sludge.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422012000900013
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 Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.35 n.9 2012
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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