Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode

Autores
Beltrame, Thiago Favarini; Coelho, Vanessa; Marder, Luciano; Ferreira, Jane Zoppas; Marchesini, Fernanda Albana; Bernardes, Andrea Moura
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Water with high concentration of nitrate may cause damage to health and to the environment. This study investigated how concentration, current density, flow, pH, the use of Pd/In catalyst and operating mode (constant current density and constant cell potential) have an influence in the electrochemical reduction of nitrate and in the formation of gaseous compounds using copper electrode. Experiments were performed in two-compartment electrolytic cells separated by a cationic membrane with nitrate model solutions prepared as a surrogate of concentrated brines from membrane desalination plants. The results show that the electroreduction process has potential for reduction of nitrate and that it is influenced by the operational conditions. The best conditions found for the treatment - with satisfactory reduction of nitrate, formation of compounds and reproducibility - were at nitrate concentrations of 600 and 1000 mg.L-1, current density of 1.1 mA.cm-2 and without pH control, since in these conditions the production of gaseous compounds is higher than the production of nitrite. When Pd/In catalyst was used, the nitrate reduction was 50% after 6 hours of experiment and the predominant product were gaseous compounds. When compared to the experiment without the catalyst, the arrangement with Pd/In was the most efficient one.
Fil: Beltrame, Thiago Favarini. Ufrgds Lacor; Brasil
Fil: Coelho, Vanessa. Ufrgds Lacor; Brasil
Fil: Marder, Luciano. Ufrgds Lacor; Brasil
Fil: Ferreira, Jane Zoppas. Ufrgds Lacor; Brasil
Fil: Marchesini, Fernanda Albana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Bernardes, Andrea Moura. Ufrgds Lacor; Brasil
Materia
Nitrate reduction
Membrane concentrated brines
Electroreduction
Elevtroe the cu
Nivel de accesibilidad
acceso embargado
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:11336/44101
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/44101
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrodeBeltrame, Thiago FavariniCoelho, VanessaMarder, LucianoFerreira, Jane ZoppasMarchesini, Fernanda AlbanaBernardes, Andrea MouraNitrate reductionMembrane concentrated brinesElectroreductionElevtroe the cuhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Water with high concentration of nitrate may cause damage to health and to the environment. This study investigated how concentration, current density, flow, pH, the use of Pd/In catalyst and operating mode (constant current density and constant cell potential) have an influence in the electrochemical reduction of nitrate and in the formation of gaseous compounds using copper electrode. Experiments were performed in two-compartment electrolytic cells separated by a cationic membrane with nitrate model solutions prepared as a surrogate of concentrated brines from membrane desalination plants. The results show that the electroreduction process has potential for reduction of nitrate and that it is influenced by the operational conditions. The best conditions found for the treatment - with satisfactory reduction of nitrate, formation of compounds and reproducibility - were at nitrate concentrations of 600 and 1000 mg.L-1, current density of 1.1 mA.cm-2 and without pH control, since in these conditions the production of gaseous compounds is higher than the production of nitrite. When Pd/In catalyst was used, the nitrate reduction was 50% after 6 hours of experiment and the predominant product were gaseous compounds. When compared to the experiment without the catalyst, the arrangement with Pd/In was the most efficient one.Fil: Beltrame, Thiago Favarini. Ufrgds Lacor; BrasilFil: Coelho, Vanessa. Ufrgds Lacor; BrasilFil: Marder, Luciano. Ufrgds Lacor; BrasilFil: Ferreira, Jane Zoppas. Ufrgds Lacor; BrasilFil: Marchesini, Fernanda Albana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Bernardes, Andrea Moura. Ufrgds Lacor; BrasilTaylor & Francis Ltd2017-08info:eu-repo/date/embargoEnd/2018-08-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44101Beltrame, Thiago Favarini; Coelho, Vanessa; Marder, Luciano; Ferreira, Jane Zoppas; Marchesini, Fernanda Albana; et al.; Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode; Taylor & Francis Ltd; Environmental Technology; 8-2017; 1-480959-3330CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/09593330.2017.1367422info:eu-repo/semantics/altIdentifier/doi/10.1080/09593330.2017.1367422info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:57:14Zoai:ri.conicet.gov.ar:11336/44101instacron: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:34982025-09-03 09:57:14.514CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
title Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
spellingShingle Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
Beltrame, Thiago Favarini
Nitrate reduction
Membrane concentrated brines
Electroreduction
Elevtroe the cu
title_short Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
title_full Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
title_fullStr Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
title_full_unstemmed Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
title_sort Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
dc.creator.none.fl_str_mv Beltrame, Thiago Favarini
Coelho, Vanessa
Marder, Luciano
Ferreira, Jane Zoppas
Marchesini, Fernanda Albana
Bernardes, Andrea Moura
author Beltrame, Thiago Favarini
author_facet Beltrame, Thiago Favarini
Coelho, Vanessa
Marder, Luciano
Ferreira, Jane Zoppas
Marchesini, Fernanda Albana
Bernardes, Andrea Moura
author_role author
author2 Coelho, Vanessa
Marder, Luciano
Ferreira, Jane Zoppas
Marchesini, Fernanda Albana
Bernardes, Andrea Moura
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Nitrate reduction
Membrane concentrated brines
Electroreduction
Elevtroe the cu
topic Nitrate reduction
Membrane concentrated brines
Electroreduction
Elevtroe the cu
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Water with high concentration of nitrate may cause damage to health and to the environment. This study investigated how concentration, current density, flow, pH, the use of Pd/In catalyst and operating mode (constant current density and constant cell potential) have an influence in the electrochemical reduction of nitrate and in the formation of gaseous compounds using copper electrode. Experiments were performed in two-compartment electrolytic cells separated by a cationic membrane with nitrate model solutions prepared as a surrogate of concentrated brines from membrane desalination plants. The results show that the electroreduction process has potential for reduction of nitrate and that it is influenced by the operational conditions. The best conditions found for the treatment - with satisfactory reduction of nitrate, formation of compounds and reproducibility - were at nitrate concentrations of 600 and 1000 mg.L-1, current density of 1.1 mA.cm-2 and without pH control, since in these conditions the production of gaseous compounds is higher than the production of nitrite. When Pd/In catalyst was used, the nitrate reduction was 50% after 6 hours of experiment and the predominant product were gaseous compounds. When compared to the experiment without the catalyst, the arrangement with Pd/In was the most efficient one.
Fil: Beltrame, Thiago Favarini. Ufrgds Lacor; Brasil
Fil: Coelho, Vanessa. Ufrgds Lacor; Brasil
Fil: Marder, Luciano. Ufrgds Lacor; Brasil
Fil: Ferreira, Jane Zoppas. Ufrgds Lacor; Brasil
Fil: Marchesini, Fernanda Albana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Bernardes, Andrea Moura. Ufrgds Lacor; Brasil
description Water with high concentration of nitrate may cause damage to health and to the environment. This study investigated how concentration, current density, flow, pH, the use of Pd/In catalyst and operating mode (constant current density and constant cell potential) have an influence in the electrochemical reduction of nitrate and in the formation of gaseous compounds using copper electrode. Experiments were performed in two-compartment electrolytic cells separated by a cationic membrane with nitrate model solutions prepared as a surrogate of concentrated brines from membrane desalination plants. The results show that the electroreduction process has potential for reduction of nitrate and that it is influenced by the operational conditions. The best conditions found for the treatment - with satisfactory reduction of nitrate, formation of compounds and reproducibility - were at nitrate concentrations of 600 and 1000 mg.L-1, current density of 1.1 mA.cm-2 and without pH control, since in these conditions the production of gaseous compounds is higher than the production of nitrite. When Pd/In catalyst was used, the nitrate reduction was 50% after 6 hours of experiment and the predominant product were gaseous compounds. When compared to the experiment without the catalyst, the arrangement with Pd/In was the most efficient one.
publishDate 2017
dc.date.none.fl_str_mv 2017-08
info:eu-repo/date/embargoEnd/2018-08-31
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/11336/44101
Beltrame, Thiago Favarini; Coelho, Vanessa; Marder, Luciano; Ferreira, Jane Zoppas; Marchesini, Fernanda Albana; et al.; Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode; Taylor & Francis Ltd; Environmental Technology; 8-2017; 1-48
0959-3330
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44101
identifier_str_mv Beltrame, Thiago Favarini; Coelho, Vanessa; Marder, Luciano; Ferreira, Jane Zoppas; Marchesini, Fernanda Albana; et al.; Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode; Taylor & Francis Ltd; Environmental Technology; 8-2017; 1-48
0959-3330
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.tandfonline.com/doi/full/10.1080/09593330.2017.1367422
info:eu-repo/semantics/altIdentifier/doi/10.1080/09593330.2017.1367422
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv embargoedAccess
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 Taylor & Francis Ltd
publisher.none.fl_str_mv Taylor & Francis Ltd
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_ 1842269450475143168
score 13.13397

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