Application of oxidative process to degrade paraquat present in the commercial herbicide
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/03601234.2021.1936991 http://hdl.handle.net/11449/221814 |
Resumo: | Paraquat is resistant to degradation by conventional treatments, being necessary to use treatments with greater effectiveness, such as advanced oxidative processes. In this work, different advanced oxidative processes were applied (Fenton, electro-Fenton, photoelectro-oxidation and photoelectro-Fenton) employing oxide electrodes to degrade Gramoxone, a commercial herbicide that contains paraquat in its composition. The degradation and formation of by-products were accompanied by high performance liquid chromatography, total organic carbon (TOC) and chemical oxygen demand (COD). The results showed that the photoelectro-Fenton process was the most efficient due to the synergistic effect, reaching 79% degradation of the initial compound and 82% and 71% removal of TOC and COD, respectively. After the application of the electro-Fenton and photoelectro-Fenton oxidation processes, short-chain carboxylic acids such as succinic acid, oxalic acid, acetic acid and formic acid were identified as by-products of the oxidation of Gramoxone. The results were satisfactory and deserve to be highlighted, as a commercial formulation was used, making the scenario more realistic. |
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Repositório Institucional da UNESP |
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Application of oxidative process to degrade paraquat present in the commercial herbicideby-productselectro-FentonFentonGramoxoneparaquatphotoelectro-oxidationParaquat is resistant to degradation by conventional treatments, being necessary to use treatments with greater effectiveness, such as advanced oxidative processes. In this work, different advanced oxidative processes were applied (Fenton, electro-Fenton, photoelectro-oxidation and photoelectro-Fenton) employing oxide electrodes to degrade Gramoxone, a commercial herbicide that contains paraquat in its composition. The degradation and formation of by-products were accompanied by high performance liquid chromatography, total organic carbon (TOC) and chemical oxygen demand (COD). The results showed that the photoelectro-Fenton process was the most efficient due to the synergistic effect, reaching 79% degradation of the initial compound and 82% and 71% removal of TOC and COD, respectively. After the application of the electro-Fenton and photoelectro-Fenton oxidation processes, short-chain carboxylic acids such as succinic acid, oxalic acid, acetic acid and formic acid were identified as by-products of the oxidation of Gramoxone. The results were satisfactory and deserve to be highlighted, as a commercial formulation was used, making the scenario more realistic.School of Sciences and Engineering Biosystems Engineering Department São Paulo State University (UNESP)School of Sciences and Engineering Biosystems Engineering Department São Paulo State University (UNESP)Universidade Estadual Paulista (UNESP)Tadayozzi, Yasmin Saegusa [UNESP]Santos, Felipe André dos [UNESP]Vicente, Eduardo Festozo [UNESP]Forti, Juliane Cristina [UNESP]2022-04-28T19:40:47Z2022-04-28T19:40:47Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article670-674http://dx.doi.org/10.1080/03601234.2021.1936991Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 56, n. 7, p. 670-674, 2021.1532-41090360-1234http://hdl.handle.net/11449/22181410.1080/03601234.2021.19369912-s2.0-85108350772Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastesinfo:eu-repo/semantics/openAccess2022-04-28T19:40:47Zoai:repositorio.unesp.br:11449/221814Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:49:19.505886Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Application of oxidative process to degrade paraquat present in the commercial herbicide |
title |
Application of oxidative process to degrade paraquat present in the commercial herbicide |
spellingShingle |
Application of oxidative process to degrade paraquat present in the commercial herbicide Tadayozzi, Yasmin Saegusa [UNESP] by-products electro-Fenton Fenton Gramoxone paraquat photoelectro-oxidation |
title_short |
Application of oxidative process to degrade paraquat present in the commercial herbicide |
title_full |
Application of oxidative process to degrade paraquat present in the commercial herbicide |
title_fullStr |
Application of oxidative process to degrade paraquat present in the commercial herbicide |
title_full_unstemmed |
Application of oxidative process to degrade paraquat present in the commercial herbicide |
title_sort |
Application of oxidative process to degrade paraquat present in the commercial herbicide |
author |
Tadayozzi, Yasmin Saegusa [UNESP] |
author_facet |
Tadayozzi, Yasmin Saegusa [UNESP] Santos, Felipe André dos [UNESP] Vicente, Eduardo Festozo [UNESP] Forti, Juliane Cristina [UNESP] |
author_role |
author |
author2 |
Santos, Felipe André dos [UNESP] Vicente, Eduardo Festozo [UNESP] Forti, Juliane Cristina [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Tadayozzi, Yasmin Saegusa [UNESP] Santos, Felipe André dos [UNESP] Vicente, Eduardo Festozo [UNESP] Forti, Juliane Cristina [UNESP] |
dc.subject.por.fl_str_mv |
by-products electro-Fenton Fenton Gramoxone paraquat photoelectro-oxidation |
topic |
by-products electro-Fenton Fenton Gramoxone paraquat photoelectro-oxidation |
description |
Paraquat is resistant to degradation by conventional treatments, being necessary to use treatments with greater effectiveness, such as advanced oxidative processes. In this work, different advanced oxidative processes were applied (Fenton, electro-Fenton, photoelectro-oxidation and photoelectro-Fenton) employing oxide electrodes to degrade Gramoxone, a commercial herbicide that contains paraquat in its composition. The degradation and formation of by-products were accompanied by high performance liquid chromatography, total organic carbon (TOC) and chemical oxygen demand (COD). The results showed that the photoelectro-Fenton process was the most efficient due to the synergistic effect, reaching 79% degradation of the initial compound and 82% and 71% removal of TOC and COD, respectively. After the application of the electro-Fenton and photoelectro-Fenton oxidation processes, short-chain carboxylic acids such as succinic acid, oxalic acid, acetic acid and formic acid were identified as by-products of the oxidation of Gramoxone. The results were satisfactory and deserve to be highlighted, as a commercial formulation was used, making the scenario more realistic. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-04-28T19:40:47Z 2022-04-28T19:40:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/03601234.2021.1936991 Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 56, n. 7, p. 670-674, 2021. 1532-4109 0360-1234 http://hdl.handle.net/11449/221814 10.1080/03601234.2021.1936991 2-s2.0-85108350772 |
url |
http://dx.doi.org/10.1080/03601234.2021.1936991 http://hdl.handle.net/11449/221814 |
identifier_str_mv |
Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 56, n. 7, p. 670-674, 2021. 1532-4109 0360-1234 10.1080/03601234.2021.1936991 2-s2.0-85108350772 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
670-674 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129361714348032 |