A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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=S0103-50532014000300002 |
Resumo: | This paper presents a review on emerging electrochemical advanced oxidation processes (EAOPs) such as UV photoelectro-Fenton (PEF) and solar photoelectro-Fenton (SPEF) in which the irradiation of the effluent with UV light and sunlight, respectively, causes a synergistic effect on the degradation process of organic pollutants by the formation of more OH and/or the photolysis of complexes of Fe(III) with generated carboxylic acids. Fundamentals of these EAOPs are explained to clarify their performance in the removal of industrial chemicals, pesticides, dyes and pharmaceuticals. Examples with bench-scaled stirred tank reactors equipped with Pt or boron-doped diamond (BDD) anodes and gas-diffusion, carbon-felt or activated carbon fiber cathodes are discussed. Treatments with a recirculation pre-pilot plant coupled to a solar photoreactor are also examined. A combined method involving PEF and photocatalysis is described. The influence of experimental parameters on the mineralization rate, mineralization current efficiency and energy cost of the PEF and SPEF methods is detailed. The decay kinetics of contaminants and the evolution of their intermediates and final inorganic ions are discussed. The SPEF process resulted more efficient and less expensive than other EAOPs like anodic oxidation with electrogenerated H2O2, electro-Fenton and PEF. |
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A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fentonorganic mineralizationphotoelectro-FentonsunlightUV lightwater treatmentThis paper presents a review on emerging electrochemical advanced oxidation processes (EAOPs) such as UV photoelectro-Fenton (PEF) and solar photoelectro-Fenton (SPEF) in which the irradiation of the effluent with UV light and sunlight, respectively, causes a synergistic effect on the degradation process of organic pollutants by the formation of more OH and/or the photolysis of complexes of Fe(III) with generated carboxylic acids. Fundamentals of these EAOPs are explained to clarify their performance in the removal of industrial chemicals, pesticides, dyes and pharmaceuticals. Examples with bench-scaled stirred tank reactors equipped with Pt or boron-doped diamond (BDD) anodes and gas-diffusion, carbon-felt or activated carbon fiber cathodes are discussed. Treatments with a recirculation pre-pilot plant coupled to a solar photoreactor are also examined. A combined method involving PEF and photocatalysis is described. The influence of experimental parameters on the mineralization rate, mineralization current efficiency and energy cost of the PEF and SPEF methods is detailed. The decay kinetics of contaminants and the evolution of their intermediates and final inorganic ions are discussed. The SPEF process resulted more efficient and less expensive than other EAOPs like anodic oxidation with electrogenerated H2O2, electro-Fenton and PEF.Sociedade Brasileira de Química2014-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000300002Journal of the Brazilian Chemical Society v.25 n.3 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130257info:eu-repo/semantics/openAccessBrillas,Enriceng2014-03-19T00:00:00Zoai:scielo:S0103-50532014000300002Revistahttp://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 |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton |
title |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton |
spellingShingle |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton Brillas,Enric organic mineralization photoelectro-Fenton sunlight UV light water treatment |
title_short |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton |
title_full |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton |
title_fullStr |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton |
title_full_unstemmed |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton |
title_sort |
A review on the degradation of organic pollutants in waters by UV photoelectro-Fenton and solar photoelectro-Fenton |
author |
Brillas,Enric |
author_facet |
Brillas,Enric |
author_role |
author |
dc.contributor.author.fl_str_mv |
Brillas,Enric |
dc.subject.por.fl_str_mv |
organic mineralization photoelectro-Fenton sunlight UV light water treatment |
topic |
organic mineralization photoelectro-Fenton sunlight UV light water treatment |
description |
This paper presents a review on emerging electrochemical advanced oxidation processes (EAOPs) such as UV photoelectro-Fenton (PEF) and solar photoelectro-Fenton (SPEF) in which the irradiation of the effluent with UV light and sunlight, respectively, causes a synergistic effect on the degradation process of organic pollutants by the formation of more OH and/or the photolysis of complexes of Fe(III) with generated carboxylic acids. Fundamentals of these EAOPs are explained to clarify their performance in the removal of industrial chemicals, pesticides, dyes and pharmaceuticals. Examples with bench-scaled stirred tank reactors equipped with Pt or boron-doped diamond (BDD) anodes and gas-diffusion, carbon-felt or activated carbon fiber cathodes are discussed. Treatments with a recirculation pre-pilot plant coupled to a solar photoreactor are also examined. A combined method involving PEF and photocatalysis is described. The influence of experimental parameters on the mineralization rate, mineralization current efficiency and energy cost of the PEF and SPEF methods is detailed. The decay kinetics of contaminants and the evolution of their intermediates and final inorganic ions are discussed. The SPEF process resulted more efficient and less expensive than other EAOPs like anodic oxidation with electrogenerated H2O2, electro-Fenton and PEF. |
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=S0103-50532014000300002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000300002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20130257 |
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 |
_version_ |
1750318175733415936 |