Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light

In this work, the effect of solar light as a 'reducing agent' in Fe(VI)/PMS process for disinfection and decontamination of water was investigated. Single, double and triple-factor disinfection processes were systematically studied against Escherichia coli and validated on sulfamethoxazole...

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Autores: López Vinent, Núria, Cruz Alcalde, Alberto, Moussavi, Gholamreza, del Castillo Gonzalez, Isabel, Hernandez Lehmann, Aurelio, Giménez Farreras, Jaume, Giannakis, Stefanos
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/189593
Acesso em linha:https://hdl.handle.net/2445/189593
Access Level:acceso abierto
Palavra-chave:Escheríchia coli
Depuració de l'aigua
Contaminants
Escherichia coli
Water purification
Pollutants
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spelling Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar lightLópez Vinent, NúriaCruz Alcalde, AlbertoMoussavi, Gholamrezadel Castillo Gonzalez, IsabelHernandez Lehmann, AurelioGiménez Farreras, JaumeGiannakis, StefanosEscheríchia coliDepuració de l'aiguaContaminantsEscherichia coliWater purificationPollutantsIn this work, the effect of solar light as a 'reducing agent' in Fe(VI)/PMS process for disinfection and decontamination of water was investigated. Single, double and triple-factor disinfection processes were systematically studied against Escherichia coli and validated on sulfamethoxazole. The experiments performed with PMS or Fe(VI) in dark conditions only achieved 1-log reduction in 2 h, while no significant enhancement was found in the Fe(VI)/PMS system. The introduction of solar light in either PMS or Fe(VI) process enhanced the E. coli inactivation since complete inactivation (6-log) was reached at 90 min. However, the best improvement was done with the triple-factor disinfection process (Fe(VI)/PMS/solar light) which presented 6-log reduction at only 40 min. In the case of sulfamethoxazole, more than 70% removal was achieved under the Fe(VI)/PMS/solar light system, while only about 20% was observed with single and double-factor processes. Our study revealed the light spectrum distribution effects, the iron implications, while a main role for 〖HO〗^¿ and the participation of 〖SO〗_4^(¿-) was found, without overlooking the direct effects of solar light and PMS itself, as well as the possible involvement of other transient species. Overall, the efficacy of the Fe(VI)/PMS/solar light process against a series of microorganisms combined with the effectiveness at near-neutral pH, suggest its suitability for further assessment in disinfection and/or decontamination of water.Elsevier B.V.2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/189593Articles publicats en revistes (Enginyeria Química i Química Analítica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1016/j.cej.2022.137904Chemical Engineering Journal, 2022, vol. 450, num. 137904https://doi.org/10.1016/j.cej.2022.137904cc-by-nc-nd (c) López Vinent, Núria, et al., 2022https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1895932026-05-27T06:46:51Z
dc.title.none.fl_str_mv Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
title Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
spellingShingle Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
López Vinent, Núria
Escheríchia coli
Depuració de l'aigua
Contaminants
Escherichia coli
Water purification
Pollutants
title_short Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
title_full Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
title_fullStr Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
title_full_unstemmed Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
title_sort Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
dc.creator.none.fl_str_mv López Vinent, Núria
Cruz Alcalde, Alberto
Moussavi, Gholamreza
del Castillo Gonzalez, Isabel
Hernandez Lehmann, Aurelio
Giménez Farreras, Jaume
Giannakis, Stefanos
author López Vinent, Núria
author_facet López Vinent, Núria
Cruz Alcalde, Alberto
Moussavi, Gholamreza
del Castillo Gonzalez, Isabel
Hernandez Lehmann, Aurelio
Giménez Farreras, Jaume
Giannakis, Stefanos
author_role author
author2 Cruz Alcalde, Alberto
Moussavi, Gholamreza
del Castillo Gonzalez, Isabel
Hernandez Lehmann, Aurelio
Giménez Farreras, Jaume
Giannakis, Stefanos
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Escheríchia coli
Depuració de l'aigua
Contaminants
Escherichia coli
Water purification
Pollutants
topic Escheríchia coli
Depuració de l'aigua
Contaminants
Escherichia coli
Water purification
Pollutants
description In this work, the effect of solar light as a 'reducing agent' in Fe(VI)/PMS process for disinfection and decontamination of water was investigated. Single, double and triple-factor disinfection processes were systematically studied against Escherichia coli and validated on sulfamethoxazole. The experiments performed with PMS or Fe(VI) in dark conditions only achieved 1-log reduction in 2 h, while no significant enhancement was found in the Fe(VI)/PMS system. The introduction of solar light in either PMS or Fe(VI) process enhanced the E. coli inactivation since complete inactivation (6-log) was reached at 90 min. However, the best improvement was done with the triple-factor disinfection process (Fe(VI)/PMS/solar light) which presented 6-log reduction at only 40 min. In the case of sulfamethoxazole, more than 70% removal was achieved under the Fe(VI)/PMS/solar light system, while only about 20% was observed with single and double-factor processes. Our study revealed the light spectrum distribution effects, the iron implications, while a main role for 〖HO〗^¿ and the participation of 〖SO〗_4^(¿-) was found, without overlooking the direct effects of solar light and PMS itself, as well as the possible involvement of other transient species. Overall, the efficacy of the Fe(VI)/PMS/solar light process against a series of microorganisms combined with the effectiveness at near-neutral pH, suggest its suitability for further assessment in disinfection and/or decontamination of water.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/189593
url https://hdl.handle.net/2445/189593
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1016/j.cej.2022.137904
Chemical Engineering Journal, 2022, vol. 450, num. 137904
https://doi.org/10.1016/j.cej.2022.137904
dc.rights.none.fl_str_mv cc-by-nc-nd (c) López Vinent, Núria, et al., 2022
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) López Vinent, Núria, et al., 2022
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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