Clopyralid degradation by AOPs enhanced with zero valent iron

Four different technologies have been compared (photolysis, ZVI + photolysis, electrolysis and ZVI + electrolysis) regarding the: (1) degradation of clopyralid, (2) extent of its mineralization, (3) formation of by-products and main reaction pathways. Results show that photolysis is the less efficie...

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Autores: Barbosa Ferreira, Maiara, Souza, Fernanda, Muñoz Morales, Martín, Sáez Jiménez, Cristina, Cañizares Cañizares, Pablo, Martínez Huitle, Carlos Alberto, Rodrigo Rodrigo, Manuel Andrés
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/29349
Acceso en línea:https://doi.org/10.1016/j.jhazmat.2020.122282
http://hdl.handle.net/10578/29349
Access Level:acceso abierto
Palabra clave:Clopyralid degradation
ZVI
Photolysis
Electrolysis
Coupled processes
Reaction pathways
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spelling Clopyralid degradation by AOPs enhanced with zero valent ironBarbosa Ferreira, MaiaraSouza, FernandaMuñoz Morales, MartínSáez Jiménez, CristinaCañizares Cañizares, PabloMartínez Huitle, Carlos AlbertoRodrigo Rodrigo, Manuel AndrésClopyralid degradationZVIPhotolysisElectrolysisCoupled processesReaction pathwaysFour different technologies have been compared (photolysis, ZVI + photolysis, electrolysis and ZVI + electrolysis) regarding the: (1) degradation of clopyralid, (2) extent of its mineralization, (3) formation of by-products and main reaction pathways. Results show that photolysis is the less efficient treatment and it only attains 5 % removal of the pollutant, much less than ZVI, which reaches 45 % removal and that electrolysis, which attains complete removal and 78 % mineralization within 4 h. When ZVI is used as pre-treatment of electrolysis, it was obtained the most efficient technology. The identification of transformation products was carried out for each treatment by LCsingle bondMS. In total, ten products were identified. Tentative pathways for preferential clopyralid degradation for all processes were proposed. This work draws attention of the synergisms caused by the coupling of techniques involving the treatment of chlorinated compound and sheds light on how the preferential mechanisms of each treatment evaluated occurred.Elsevier202220222020info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1016/j.jhazmat.2020.122282http://hdl.handle.net/10578/29349reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésSpanish Agencia Estatal de Investigación through project CTM2016-76197-R (AEI/FEDER, UE) and grant FPU16/00067Coordenação de Aperfeiçoamento de Pessoal de nível Superior (CAPES-Brazil) through process 88881.171154/2018-01This work contains also first results of the Project PID2019-107271RB-I00, continuation of the CTM2016-76197-Rinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/293492026-05-27T07:36:41Z
dc.title.none.fl_str_mv Clopyralid degradation by AOPs enhanced with zero valent iron
title Clopyralid degradation by AOPs enhanced with zero valent iron
spellingShingle Clopyralid degradation by AOPs enhanced with zero valent iron
Barbosa Ferreira, Maiara
Clopyralid degradation
ZVI
Photolysis
Electrolysis
Coupled processes
Reaction pathways
title_short Clopyralid degradation by AOPs enhanced with zero valent iron
title_full Clopyralid degradation by AOPs enhanced with zero valent iron
title_fullStr Clopyralid degradation by AOPs enhanced with zero valent iron
title_full_unstemmed Clopyralid degradation by AOPs enhanced with zero valent iron
title_sort Clopyralid degradation by AOPs enhanced with zero valent iron
dc.creator.none.fl_str_mv Barbosa Ferreira, Maiara
Souza, Fernanda
Muñoz Morales, Martín
Sáez Jiménez, Cristina
Cañizares Cañizares, Pablo
Martínez Huitle, Carlos Alberto
Rodrigo Rodrigo, Manuel Andrés
author Barbosa Ferreira, Maiara
author_facet Barbosa Ferreira, Maiara
Souza, Fernanda
Muñoz Morales, Martín
Sáez Jiménez, Cristina
Cañizares Cañizares, Pablo
Martínez Huitle, Carlos Alberto
Rodrigo Rodrigo, Manuel Andrés
author_role author
author2 Souza, Fernanda
Muñoz Morales, Martín
Sáez Jiménez, Cristina
Cañizares Cañizares, Pablo
Martínez Huitle, Carlos Alberto
Rodrigo Rodrigo, Manuel Andrés
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Clopyralid degradation
ZVI
Photolysis
Electrolysis
Coupled processes
Reaction pathways
topic Clopyralid degradation
ZVI
Photolysis
Electrolysis
Coupled processes
Reaction pathways
description Four different technologies have been compared (photolysis, ZVI + photolysis, electrolysis and ZVI + electrolysis) regarding the: (1) degradation of clopyralid, (2) extent of its mineralization, (3) formation of by-products and main reaction pathways. Results show that photolysis is the less efficient treatment and it only attains 5 % removal of the pollutant, much less than ZVI, which reaches 45 % removal and that electrolysis, which attains complete removal and 78 % mineralization within 4 h. When ZVI is used as pre-treatment of electrolysis, it was obtained the most efficient technology. The identification of transformation products was carried out for each treatment by LCsingle bondMS. In total, ten products were identified. Tentative pathways for preferential clopyralid degradation for all processes were proposed. This work draws attention of the synergisms caused by the coupling of techniques involving the treatment of chlorinated compound and sheds light on how the preferential mechanisms of each treatment evaluated occurred.
publishDate 2020
dc.date.none.fl_str_mv 2020
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.jhazmat.2020.122282
http://hdl.handle.net/10578/29349
url https://doi.org/10.1016/j.jhazmat.2020.122282
http://hdl.handle.net/10578/29349
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Spanish Agencia Estatal de Investigación through project CTM2016-76197-R (AEI/FEDER, UE) and grant FPU16/00067
Coordenação de Aperfeiçoamento de Pessoal de nível Superior (CAPES-Brazil) through process 88881.171154/2018-01
This work contains also first results of the Project PID2019-107271RB-I00, continuation of the CTM2016-76197-R
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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