Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation

Autores
Ghiselli, Gislaine; Jardim, Wilson F.; Litter, Marta Irene; Mansilla, Héctor D.
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Degradation experiments using 5 mmol/l ethylenediaminetetraacetic acid (EDTA) solutions at pH 3 were performed in the presence of H2O2 and metals such as Fe2+, Fe3+, Cu2+ and mixtures of Fe2+/Cu2+ and Fe3+/Cu2+ under UV-A irradiation (366 nm)?photo-Fenton and photo-Fenton-like reactions?at different metal/EDTA concentration ratios in order to determine the best conditions for EDTA photochemical removal. Analogous dark reactions were performed for comparison. The reaction course was monitored by both EDTA and TOC eterminations. Hydrogen peroxide demand was also evaluated in all cases. In terms of TOC removal, photo-Fenton-like reactions were remarkably more fficient than the analogous Fenton-like reactions. When EDTA was monitored, Fenton-like reactions showed variable performances, being more efficient with EDTA:Fe2+ and EDTA:Fe3+ ratios of 1:1. However, in these both cases, reaction rates were lower than the ones obtained under irradiation. Total mineralization ranged from 31% (Cu2+ system) to 92% (Fe2+, Fe3+, Fe3+ + Cu2+ and Fe2+ + Cu2+ systems) after 4 h of irradiation. Percentage of TOC removal was higher in the presence of iron because some photoactive intermediates were probably formed during EDTA degradation.
Fil: Ghiselli, Gislaine. Universidade Estadual de Campinas; Brasil
Fil: Jardim, Wilson F.. Universidade Estadual de Campinas; Brasil
Fil: Litter, Marta Irene. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mansilla, Héctor D.. Universidad de Concepción; Chile
Materia
EDTA
FENTON REACTION
UV LIGHT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/244294
Acceder
id CONICETDig_a4aae65c9ce478910022037d25ff805d
oai_identifier_str oai:ri.conicet.gov.ar:11336/244294
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiationGhiselli, GislaineJardim, Wilson F.Litter, Marta IreneMansilla, Héctor D.EDTAFENTON REACTIONUV LIGHThttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Degradation experiments using 5 mmol/l ethylenediaminetetraacetic acid (EDTA) solutions at pH 3 were performed in the presence of H2O2 and metals such as Fe2+, Fe3+, Cu2+ and mixtures of Fe2+/Cu2+ and Fe3+/Cu2+ under UV-A irradiation (366 nm)?photo-Fenton and photo-Fenton-like reactions?at different metal/EDTA concentration ratios in order to determine the best conditions for EDTA photochemical removal. Analogous dark reactions were performed for comparison. The reaction course was monitored by both EDTA and TOC eterminations. Hydrogen peroxide demand was also evaluated in all cases. In terms of TOC removal, photo-Fenton-like reactions were remarkably more fficient than the analogous Fenton-like reactions. When EDTA was monitored, Fenton-like reactions showed variable performances, being more efficient with EDTA:Fe2+ and EDTA:Fe3+ ratios of 1:1. However, in these both cases, reaction rates were lower than the ones obtained under irradiation. Total mineralization ranged from 31% (Cu2+ system) to 92% (Fe2+, Fe3+, Fe3+ + Cu2+ and Fe2+ + Cu2+ systems) after 4 h of irradiation. Percentage of TOC removal was higher in the presence of iron because some photoactive intermediates were probably formed during EDTA degradation.Fil: Ghiselli, Gislaine. Universidade Estadual de Campinas; BrasilFil: Jardim, Wilson F.. Universidade Estadual de Campinas; BrasilFil: Litter, Marta Irene. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mansilla, Héctor D.. Universidad de Concepción; ChileElsevier Science SA2004-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244294Ghiselli, Gislaine; Jardim, Wilson F.; Litter, Marta Irene; Mansilla, Héctor D.; Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 167; 1; 9-2004; 59-671010-6030CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1010603004000668info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2004.02.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:20:08Zoai:ri.conicet.gov.ar:11336/244294instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:20:08.452CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
title Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
spellingShingle Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
Ghiselli, Gislaine
EDTA
FENTON REACTION
UV LIGHT
title_short Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
title_full Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
title_fullStr Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
title_full_unstemmed Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
title_sort Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation
dc.creator.none.fl_str_mv Ghiselli, Gislaine
Jardim, Wilson F.
Litter, Marta Irene
Mansilla, Héctor D.
author Ghiselli, Gislaine
author_facet Ghiselli, Gislaine
Jardim, Wilson F.
Litter, Marta Irene
Mansilla, Héctor D.
author_role author
author2 Jardim, Wilson F.
Litter, Marta Irene
Mansilla, Héctor D.
author2_role author
author
author
dc.subject.none.fl_str_mv EDTA
FENTON REACTION
UV LIGHT
topic EDTA
FENTON REACTION
UV LIGHT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Degradation experiments using 5 mmol/l ethylenediaminetetraacetic acid (EDTA) solutions at pH 3 were performed in the presence of H2O2 and metals such as Fe2+, Fe3+, Cu2+ and mixtures of Fe2+/Cu2+ and Fe3+/Cu2+ under UV-A irradiation (366 nm)?photo-Fenton and photo-Fenton-like reactions?at different metal/EDTA concentration ratios in order to determine the best conditions for EDTA photochemical removal. Analogous dark reactions were performed for comparison. The reaction course was monitored by both EDTA and TOC eterminations. Hydrogen peroxide demand was also evaluated in all cases. In terms of TOC removal, photo-Fenton-like reactions were remarkably more fficient than the analogous Fenton-like reactions. When EDTA was monitored, Fenton-like reactions showed variable performances, being more efficient with EDTA:Fe2+ and EDTA:Fe3+ ratios of 1:1. However, in these both cases, reaction rates were lower than the ones obtained under irradiation. Total mineralization ranged from 31% (Cu2+ system) to 92% (Fe2+, Fe3+, Fe3+ + Cu2+ and Fe2+ + Cu2+ systems) after 4 h of irradiation. Percentage of TOC removal was higher in the presence of iron because some photoactive intermediates were probably formed during EDTA degradation.
Fil: Ghiselli, Gislaine. Universidade Estadual de Campinas; Brasil
Fil: Jardim, Wilson F.. Universidade Estadual de Campinas; Brasil
Fil: Litter, Marta Irene. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mansilla, Héctor D.. Universidad de Concepción; Chile
description Degradation experiments using 5 mmol/l ethylenediaminetetraacetic acid (EDTA) solutions at pH 3 were performed in the presence of H2O2 and metals such as Fe2+, Fe3+, Cu2+ and mixtures of Fe2+/Cu2+ and Fe3+/Cu2+ under UV-A irradiation (366 nm)?photo-Fenton and photo-Fenton-like reactions?at different metal/EDTA concentration ratios in order to determine the best conditions for EDTA photochemical removal. Analogous dark reactions were performed for comparison. The reaction course was monitored by both EDTA and TOC eterminations. Hydrogen peroxide demand was also evaluated in all cases. In terms of TOC removal, photo-Fenton-like reactions were remarkably more fficient than the analogous Fenton-like reactions. When EDTA was monitored, Fenton-like reactions showed variable performances, being more efficient with EDTA:Fe2+ and EDTA:Fe3+ ratios of 1:1. However, in these both cases, reaction rates were lower than the ones obtained under irradiation. Total mineralization ranged from 31% (Cu2+ system) to 92% (Fe2+, Fe3+, Fe3+ + Cu2+ and Fe2+ + Cu2+ systems) after 4 h of irradiation. Percentage of TOC removal was higher in the presence of iron because some photoactive intermediates were probably formed during EDTA degradation.
publishDate 2004
dc.date.none.fl_str_mv 2004-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/244294
Ghiselli, Gislaine; Jardim, Wilson F.; Litter, Marta Irene; Mansilla, Héctor D.; Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 167; 1; 9-2004; 59-67
1010-6030
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244294
identifier_str_mv Ghiselli, Gislaine; Jardim, Wilson F.; Litter, Marta Irene; Mansilla, Héctor D.; Destruction of EDTA using Fenton and photo-Fenton-like reactions under UV-A irradiation; Elsevier Science SA; Journal of Photochemistry and Photobiology A: Chemistry; 167; 1; 9-2004; 59-67
1010-6030
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1010603004000668
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotochem.2004.02.005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science SA
publisher.none.fl_str_mv Elsevier Science SA
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846781688206589952
score 12.982451

Publicaciones similares