Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode

Detalhes bibliográficos
Autor(a) principal: Souza,Fernanda L.
Data de Publicação: 2014
Outros Autores: Aquino,José M., Miwa,Douglas W., Rodrigo,Manuel A., Motheo,Artur J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000300012
Resumo: The electrochemical degradation of dimethyl phthalate (DMP) using a one-compartment filter press flow cell and a commercial dimensionally stable anode (DSA®) is presented. The best electrolysis conditions were determined by the analysis of the influence of the nature and concentration of the support electrolyte, pH, current density and temperature. The abatement of DMP concentration and total organic carbon (TOC) removal were superior in the presence of NaCl, as well as the apparent first order kinetic constants. Using constant ionic strength at 0.15 mol dm-3 by adding Na2SO4, DMP concentration decreases faster at relative low NaCl concentrations while the TOC removal after 1 h of electrolysis increases with NaCl concentration. The DMP removal was very similar for all the current densities investigated at acidic solutions. When electric energy saving is considered, since the electrochemical system was under mass transport conditions, the best operational option is to use low current density values.
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spelling Electrochemical degradation of dimethyl phthalate ester on a DSA® electrodeendocrine disruptordimethyl phthalateindirect oxidationelectrooxidationmass-transportThe electrochemical degradation of dimethyl phthalate (DMP) using a one-compartment filter press flow cell and a commercial dimensionally stable anode (DSA®) is presented. The best electrolysis conditions were determined by the analysis of the influence of the nature and concentration of the support electrolyte, pH, current density and temperature. The abatement of DMP concentration and total organic carbon (TOC) removal were superior in the presence of NaCl, as well as the apparent first order kinetic constants. Using constant ionic strength at 0.15 mol dm-3 by adding Na2SO4, DMP concentration decreases faster at relative low NaCl concentrations while the TOC removal after 1 h of electrolysis increases with NaCl concentration. The DMP removal was very similar for all the current densities investigated at acidic solutions. When electric energy saving is considered, since the electrochemical system was under mass transport conditions, the best operational option is to use low current density values.Sociedade Brasileira de Química2014-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000300012Journal of the Brazilian Chemical Society v.25 n.3 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140007info:eu-repo/semantics/openAccessSouza,Fernanda L.Aquino,José M.Miwa,Douglas W.Rodrigo,Manuel A.Motheo,Artur J.eng2014-03-19T00:00:00Zoai:scielo:S0103-50532014000300012Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-03-19T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
title Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
spellingShingle Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
Souza,Fernanda L.
endocrine disruptor
dimethyl phthalate
indirect oxidation
electrooxidation
mass-transport
title_short Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
title_full Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
title_fullStr Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
title_full_unstemmed Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
title_sort Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode
author Souza,Fernanda L.
author_facet Souza,Fernanda L.
Aquino,José M.
Miwa,Douglas W.
Rodrigo,Manuel A.
Motheo,Artur J.
author_role author
author2 Aquino,José M.
Miwa,Douglas W.
Rodrigo,Manuel A.
Motheo,Artur J.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Souza,Fernanda L.
Aquino,José M.
Miwa,Douglas W.
Rodrigo,Manuel A.
Motheo,Artur J.
dc.subject.por.fl_str_mv endocrine disruptor
dimethyl phthalate
indirect oxidation
electrooxidation
mass-transport
topic endocrine disruptor
dimethyl phthalate
indirect oxidation
electrooxidation
mass-transport
description The electrochemical degradation of dimethyl phthalate (DMP) using a one-compartment filter press flow cell and a commercial dimensionally stable anode (DSA®) is presented. The best electrolysis conditions were determined by the analysis of the influence of the nature and concentration of the support electrolyte, pH, current density and temperature. The abatement of DMP concentration and total organic carbon (TOC) removal were superior in the presence of NaCl, as well as the apparent first order kinetic constants. Using constant ionic strength at 0.15 mol dm-3 by adding Na2SO4, DMP concentration decreases faster at relative low NaCl concentrations while the TOC removal after 1 h of electrolysis increases with NaCl concentration. The DMP removal was very similar for all the current densities investigated at acidic solutions. When electric energy saving is considered, since the electrochemical system was under mass transport conditions, the best operational option is to use low current density values.
publishDate 2014
dc.date.none.fl_str_mv 2014-03-01
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=S0103-50532014000300012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000300012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20140007
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 Journal of the Brazilian Chemical Society v.25 n.3 2014
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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