Interference of inorganic ions on phenol degradation by the Fenton reaction

Detalhes bibliográficos
Autor(a) principal: Friedrich,Leidi Cecilia
Data de Publicação: 2012
Outros Autores: Zanta,Carmem Lúcia de Paiva e Silva, Machulek Jr.,Amilcar, Silva,Volnir de Oliveira, Quina,Frank Herbert
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000600001
Resumo: The addition of Cu2+ ions to the classical Fenton reaction (Fe2+ plus H2O2 at pH 3) is found to accelerate the degradation of organic compounds. This synergic effect causes an approximately 15 % additional reduction of the total organic carbon (TOC), representing an overall improvement of the efficiency of the mineralization of phenol. Although Fe2+ exhibits a high initial rate of degradation, the degradation is not complete due to the formation of compounds refractory to the hydroxyl radical. The interference of copper ions on the degradation of phenol by the Fenton reaction was investigated. In the presence of Cu2+, the degradation is slower, but results in a greater reduction of TOC at the end of the reaction (t = 120 min). In the final stages of the reaction, when the Fe3+ in the solution is complexed in the form of ferrioxalate, the copper ions assume the role of the main catalyst of the degradation
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spelling Interference of inorganic ions on phenol degradation by the Fenton reactionThe addition of Cu2+ ions to the classical Fenton reaction (Fe2+ plus H2O2 at pH 3) is found to accelerate the degradation of organic compounds. This synergic effect causes an approximately 15 % additional reduction of the total organic carbon (TOC), representing an overall improvement of the efficiency of the mineralization of phenol. Although Fe2+ exhibits a high initial rate of degradation, the degradation is not complete due to the formation of compounds refractory to the hydroxyl radical. The interference of copper ions on the degradation of phenol by the Fenton reaction was investigated. In the presence of Cu2+, the degradation is slower, but results in a greater reduction of TOC at the end of the reaction (t = 120 min). In the final stages of the reaction, when the Fe3+ in the solution is complexed in the form of ferrioxalate, the copper ions assume the role of the main catalyst of the degradationEscola Superior de Agricultura "Luiz de Queiroz"2012-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000600001Scientia Agricola v.69 n.6 2012reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162012000600001info:eu-repo/semantics/openAccessFriedrich,Leidi CeciliaZanta,Carmem Lúcia de Paiva e SilvaMachulek Jr.,AmilcarSilva,Volnir de OliveiraQuina,Frank Herberteng2012-11-14T00:00:00Zoai:scielo:S0103-90162012000600001Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2012-11-14T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Interference of inorganic ions on phenol degradation by the Fenton reaction
title Interference of inorganic ions on phenol degradation by the Fenton reaction
spellingShingle Interference of inorganic ions on phenol degradation by the Fenton reaction
Friedrich,Leidi Cecilia
title_short Interference of inorganic ions on phenol degradation by the Fenton reaction
title_full Interference of inorganic ions on phenol degradation by the Fenton reaction
title_fullStr Interference of inorganic ions on phenol degradation by the Fenton reaction
title_full_unstemmed Interference of inorganic ions on phenol degradation by the Fenton reaction
title_sort Interference of inorganic ions on phenol degradation by the Fenton reaction
author Friedrich,Leidi Cecilia
author_facet Friedrich,Leidi Cecilia
Zanta,Carmem Lúcia de Paiva e Silva
Machulek Jr.,Amilcar
Silva,Volnir de Oliveira
Quina,Frank Herbert
author_role author
author2 Zanta,Carmem Lúcia de Paiva e Silva
Machulek Jr.,Amilcar
Silva,Volnir de Oliveira
Quina,Frank Herbert
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Friedrich,Leidi Cecilia
Zanta,Carmem Lúcia de Paiva e Silva
Machulek Jr.,Amilcar
Silva,Volnir de Oliveira
Quina,Frank Herbert
description The addition of Cu2+ ions to the classical Fenton reaction (Fe2+ plus H2O2 at pH 3) is found to accelerate the degradation of organic compounds. This synergic effect causes an approximately 15 % additional reduction of the total organic carbon (TOC), representing an overall improvement of the efficiency of the mineralization of phenol. Although Fe2+ exhibits a high initial rate of degradation, the degradation is not complete due to the formation of compounds refractory to the hydroxyl radical. The interference of copper ions on the degradation of phenol by the Fenton reaction was investigated. In the presence of Cu2+, the degradation is slower, but results in a greater reduction of TOC at the end of the reaction (t = 120 min). In the final stages of the reaction, when the Fe3+ in the solution is complexed in the form of ferrioxalate, the copper ions assume the role of the main catalyst of the degradation
publishDate 2012
dc.date.none.fl_str_mv 2012-12-01
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=S0103-90162012000600001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000600001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162012000600001
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 Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.69 n.6 2012
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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