Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation

With the aim of exploring treatment alternatives for priority insecticide acetamiprid (ACMP) abatement, the removal of this compound from water by ozonation was studied for the first time, paying special attention to the kinetic, mechanistic and toxicological aspects of the process. The second order...

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Autores: Cruz Alcalde, Alberto, Sans Mazón, Carme, Esplugas Vidal, Santiago
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/163719
Acceso en línea:https://hdl.handle.net/2445/163719
Access Level:acceso abierto
Palabra clave:Ozonització
Plaguicides
Depuració de l'aigua
Ozonization
Pesticides
Water purification
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spelling Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonationCruz Alcalde, AlbertoSans Mazón, CarmeEsplugas Vidal, SantiagoOzonitzacióPlaguicidesDepuració de l'aiguaOzonizationPesticidesWater purificationWith the aim of exploring treatment alternatives for priority insecticide acetamiprid (ACMP) abatement, the removal of this compound from water by ozonation was studied for the first time, paying special attention to the kinetic, mechanistic and toxicological aspects of the process. The second order rate constants of reactions between ACMP and both molecular ozone (O3) and hydroxyl radicals (OH·) were determined to be 0.25 M-1s-1 and 2.1·109 M-1s-1, respectively. On the basis of kinetic results, the degradation of ACMP during ozonation could be well-explained by the reactivity of this pesticide with OH·. HPLC/MS analysis of the ozonated ACMP showed ACMP-N-desmethyl, 6-chloronicotinic acid, N'cyano-N-methyl acetamidine and N'-cyano acetamidine as the major transformation products (TPs), all of them formed through amine α carbon oxidation in combination with hydrolysis. Microtox bioassays revealed an increase in the toxicity of the medium during ACMP ozonation process, followed by a decrease to relatively low values. These changes could be attributed to the synergistic effects between TPs as well as to the presence of toxic intermediate aldehydes. Even though adopting strategies to further promote ozone decomposition to hydroxyl radicals appears to be essential, ozonation can be an effective treatment process for complete ACMP removal and associated toxicity abatement.Elsevier B.V.2020202020172020info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion8 p.application/pdfhttps://hdl.handle.net/2445/163719Articles publicats en revistes (Enginyeria Química i Química Analítica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.scitotenv.2017.05.065Science of the Total Environment, 2017, vol. 599-600, p. 1454-1461https://doi.org/10.1016/j.scitotenv.2017.05.065cc-by-nc-nd (c) Elsevier B.V., 2017http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1637192026-05-29T05:05:01Z
dc.title.none.fl_str_mv Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
title Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
spellingShingle Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
Cruz Alcalde, Alberto
Ozonització
Plaguicides
Depuració de l'aigua
Ozonization
Pesticides
Water purification
title_short Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
title_full Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
title_fullStr Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
title_full_unstemmed Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
title_sort Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
dc.creator.none.fl_str_mv Cruz Alcalde, Alberto
Sans Mazón, Carme
Esplugas Vidal, Santiago
author Cruz Alcalde, Alberto
author_facet Cruz Alcalde, Alberto
Sans Mazón, Carme
Esplugas Vidal, Santiago
author_role author
author2 Sans Mazón, Carme
Esplugas Vidal, Santiago
author2_role author
author
dc.subject.none.fl_str_mv Ozonització
Plaguicides
Depuració de l'aigua
Ozonization
Pesticides
Water purification
topic Ozonització
Plaguicides
Depuració de l'aigua
Ozonization
Pesticides
Water purification
description With the aim of exploring treatment alternatives for priority insecticide acetamiprid (ACMP) abatement, the removal of this compound from water by ozonation was studied for the first time, paying special attention to the kinetic, mechanistic and toxicological aspects of the process. The second order rate constants of reactions between ACMP and both molecular ozone (O3) and hydroxyl radicals (OH·) were determined to be 0.25 M-1s-1 and 2.1·109 M-1s-1, respectively. On the basis of kinetic results, the degradation of ACMP during ozonation could be well-explained by the reactivity of this pesticide with OH·. HPLC/MS analysis of the ozonated ACMP showed ACMP-N-desmethyl, 6-chloronicotinic acid, N'cyano-N-methyl acetamidine and N'-cyano acetamidine as the major transformation products (TPs), all of them formed through amine α carbon oxidation in combination with hydrolysis. Microtox bioassays revealed an increase in the toxicity of the medium during ACMP ozonation process, followed by a decrease to relatively low values. These changes could be attributed to the synergistic effects between TPs as well as to the presence of toxic intermediate aldehydes. Even though adopting strategies to further promote ozone decomposition to hydroxyl radicals appears to be essential, ozonation can be an effective treatment process for complete ACMP removal and associated toxicity abatement.
publishDate 2017
dc.date.none.fl_str_mv 2017
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/163719
url https://hdl.handle.net/2445/163719
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.scitotenv.2017.05.065
Science of the Total Environment, 2017, vol. 599-600, p. 1454-1461
https://doi.org/10.1016/j.scitotenv.2017.05.065
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier B.V., 2017
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier B.V., 2017
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Química i Química Analítica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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