Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants

Autores
Santos Juanes, Lucas; Garcia Einschlag, Fernando Sebastian; Amat, Ana M.; Arques, Antonio
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
An iron-based photochemical process able to act via reductive and oxidative stages by tuning experimental conditions has been explored. In a first step, zero-valent iron (ZVI), added as steel wool, was used to reduce those pollutants reluctant to oxidative processes. Then, the iron released in the solution was employed, upon addition of hydrogen peroxide, to drive a photo-Fenton process. This procedure has been checked with a mixture of five chemicals, namely p-toluenesulfonic acid, benzoic acid, p-nitrobenzoic acid, acetaminophen and caffeic. p-Nitrobenzoic acid resulted to be the most reluctant against oxidation but it was reduced in the absence of H2O2 to form 4-aminobenzoic acid; the presence of salts (e.g. tap water) was required and best results were reached at neutral pH. As p-aminobenzoic acid can be more easily oxidized than p-nitrobenzoic, combination of both stages is meaningful: a ZVI-based reduction followed by a photo-Fenton like-oxidation was employed to remove this pollutant from tested solutions.
Fil: Santos Juanes, Lucas. Universidad Politécnica de Valencia; España
Fil: Garcia Einschlag, Fernando Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Amat, Ana M.. Universidad Politécnica de Valencia; España
Fil: Arques, Antonio. Universidad Politécnica de Valencia; España
Materia
Combined Processes
Iron
Photo-Fenton
Wastewater
Zvi
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/64564
Acceder
id CONICETDig_2bb36a5ed0d032e97da8b49834cdf36e
oai_identifier_str oai:ri.conicet.gov.ar:11336/64564
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutantsSantos Juanes, LucasGarcia Einschlag, Fernando SebastianAmat, Ana M.Arques, AntonioCombined ProcessesIronPhoto-FentonWastewaterZvihttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2An iron-based photochemical process able to act via reductive and oxidative stages by tuning experimental conditions has been explored. In a first step, zero-valent iron (ZVI), added as steel wool, was used to reduce those pollutants reluctant to oxidative processes. Then, the iron released in the solution was employed, upon addition of hydrogen peroxide, to drive a photo-Fenton process. This procedure has been checked with a mixture of five chemicals, namely p-toluenesulfonic acid, benzoic acid, p-nitrobenzoic acid, acetaminophen and caffeic. p-Nitrobenzoic acid resulted to be the most reluctant against oxidation but it was reduced in the absence of H2O2 to form 4-aminobenzoic acid; the presence of salts (e.g. tap water) was required and best results were reached at neutral pH. As p-aminobenzoic acid can be more easily oxidized than p-nitrobenzoic, combination of both stages is meaningful: a ZVI-based reduction followed by a photo-Fenton like-oxidation was employed to remove this pollutant from tested solutions.Fil: Santos Juanes, Lucas. Universidad Politécnica de Valencia; EspañaFil: Garcia Einschlag, Fernando Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Amat, Ana M.. Universidad Politécnica de Valencia; EspañaFil: Arques, Antonio. Universidad Politécnica de Valencia; EspañaElsevier Science Sa2017-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/64564Santos Juanes, Lucas; Garcia Einschlag, Fernando Sebastian; Amat, Ana M.; Arques, Antonio; Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants; Elsevier Science Sa; Chemical Engineering Journal; 310; 2-2017; 484-4901385-8947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894716305642info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2016.04.114info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:07:04Zoai:ri.conicet.gov.ar:11336/64564instacron: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:34982025-09-10 13:07:04.537CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
title Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
spellingShingle Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
Santos Juanes, Lucas
Combined Processes
Iron
Photo-Fenton
Wastewater
Zvi
title_short Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
title_full Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
title_fullStr Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
title_full_unstemmed Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
title_sort Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants
dc.creator.none.fl_str_mv Santos Juanes, Lucas
Garcia Einschlag, Fernando Sebastian
Amat, Ana M.
Arques, Antonio
author Santos Juanes, Lucas
author_facet Santos Juanes, Lucas
Garcia Einschlag, Fernando Sebastian
Amat, Ana M.
Arques, Antonio
author_role author
author2 Garcia Einschlag, Fernando Sebastian
Amat, Ana M.
Arques, Antonio
author2_role author
author
author
dc.subject.none.fl_str_mv Combined Processes
Iron
Photo-Fenton
Wastewater
Zvi
topic Combined Processes
Iron
Photo-Fenton
Wastewater
Zvi
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv An iron-based photochemical process able to act via reductive and oxidative stages by tuning experimental conditions has been explored. In a first step, zero-valent iron (ZVI), added as steel wool, was used to reduce those pollutants reluctant to oxidative processes. Then, the iron released in the solution was employed, upon addition of hydrogen peroxide, to drive a photo-Fenton process. This procedure has been checked with a mixture of five chemicals, namely p-toluenesulfonic acid, benzoic acid, p-nitrobenzoic acid, acetaminophen and caffeic. p-Nitrobenzoic acid resulted to be the most reluctant against oxidation but it was reduced in the absence of H2O2 to form 4-aminobenzoic acid; the presence of salts (e.g. tap water) was required and best results were reached at neutral pH. As p-aminobenzoic acid can be more easily oxidized than p-nitrobenzoic, combination of both stages is meaningful: a ZVI-based reduction followed by a photo-Fenton like-oxidation was employed to remove this pollutant from tested solutions.
Fil: Santos Juanes, Lucas. Universidad Politécnica de Valencia; España
Fil: Garcia Einschlag, Fernando Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Amat, Ana M.. Universidad Politécnica de Valencia; España
Fil: Arques, Antonio. Universidad Politécnica de Valencia; España
description An iron-based photochemical process able to act via reductive and oxidative stages by tuning experimental conditions has been explored. In a first step, zero-valent iron (ZVI), added as steel wool, was used to reduce those pollutants reluctant to oxidative processes. Then, the iron released in the solution was employed, upon addition of hydrogen peroxide, to drive a photo-Fenton process. This procedure has been checked with a mixture of five chemicals, namely p-toluenesulfonic acid, benzoic acid, p-nitrobenzoic acid, acetaminophen and caffeic. p-Nitrobenzoic acid resulted to be the most reluctant against oxidation but it was reduced in the absence of H2O2 to form 4-aminobenzoic acid; the presence of salts (e.g. tap water) was required and best results were reached at neutral pH. As p-aminobenzoic acid can be more easily oxidized than p-nitrobenzoic, combination of both stages is meaningful: a ZVI-based reduction followed by a photo-Fenton like-oxidation was employed to remove this pollutant from tested solutions.
publishDate 2017
dc.date.none.fl_str_mv 2017-02
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/11336/64564
Santos Juanes, Lucas; Garcia Einschlag, Fernando Sebastian; Amat, Ana M.; Arques, Antonio; Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants; Elsevier Science Sa; Chemical Engineering Journal; 310; 2-2017; 484-490
1385-8947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/64564
identifier_str_mv Santos Juanes, Lucas; Garcia Einschlag, Fernando Sebastian; Amat, Ana M.; Arques, Antonio; Combining ZVI reduction with photo-Fenton process for the removal of persistent pollutants; Elsevier Science Sa; Chemical Engineering Journal; 310; 2-2017; 484-490
1385-8947
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894716305642
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2016.04.114
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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_ 1842980309030666240
score 12.993085

Publicaciones similares