Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation

Autores
Beltrame, Thiago Favarini; Miranda Zoppas, Fernanda; Ferreira, J. Z.; Marchesini, Fernanda Albana; Bernardes, Andrea Moura
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work aims to present different electroreduction and electrocatalytic processes configurations to treat nitrate contaminated water. The parameters tested were: current density, cell potential, electrode potential, pH values, cell type and catalyst use. It was found that the nitrite ion is present in all process variations used, being the resulting nitrite concentration higher in an alkaline pH. The increase in current density on galvanostatic operation mode provides a greater reduction of nitrate (64%, 1.4 mA cm-2) if compared to the potentiostatic (20%) and constant cell potential (37%) configurations. In a dual-chamber cell the nitrate reduction with current density of 1.4 mA cm-2 was tested and obtained as a NO3- reduction of 85%. The use of single chamber cell presented 32 + 3% of nitrate reduction, indicating that in this cell type the nitrate reduction is smaller than in dual-chamber cell (64%). The presence of a Pd catalyst with 3.1% wt. decreased the nitrite (1.0 N-mg L-1) and increased the gaseous compounds (9.4 N-mg L-1) formation. The best configuration showed that, by fixing the current density, the highest nitrate reduction is obtained and the pH presents a significant influence during the tests. The use of the catalyst decreased the nitrite and enhanced the gaseous compounds formation.
Fil: Beltrame, Thiago Favarini. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Miranda Zoppas, Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Ferreira, J. Z.. Universidade Federal do Rio Grande do Sul; 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 "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Bernardes, Andrea Moura. Universidade Federal do Rio Grande do Sul; Brasil
Materia
COPPER ELECTRODE
ELECTROCATALYSIS
ELECTROREDUCTION
NITRATE REDUCTION
OPERATIONAL PARAMETERS
PD CATALYST
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:11336/170179
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/170179
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formationBeltrame, Thiago FavariniMiranda Zoppas, FernandaFerreira, J. Z.Marchesini, Fernanda AlbanaBernardes, Andrea MouraCOPPER ELECTRODEELECTROCATALYSISELECTROREDUCTIONNITRATE REDUCTIONOPERATIONAL PARAMETERSPD CATALYSThttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This work aims to present different electroreduction and electrocatalytic processes configurations to treat nitrate contaminated water. The parameters tested were: current density, cell potential, electrode potential, pH values, cell type and catalyst use. It was found that the nitrite ion is present in all process variations used, being the resulting nitrite concentration higher in an alkaline pH. The increase in current density on galvanostatic operation mode provides a greater reduction of nitrate (64%, 1.4 mA cm-2) if compared to the potentiostatic (20%) and constant cell potential (37%) configurations. In a dual-chamber cell the nitrate reduction with current density of 1.4 mA cm-2 was tested and obtained as a NO3- reduction of 85%. The use of single chamber cell presented 32 + 3% of nitrate reduction, indicating that in this cell type the nitrate reduction is smaller than in dual-chamber cell (64%). The presence of a Pd catalyst with 3.1% wt. decreased the nitrite (1.0 N-mg L-1) and increased the gaseous compounds (9.4 N-mg L-1) formation. The best configuration showed that, by fixing the current density, the highest nitrate reduction is obtained and the pH presents a significant influence during the tests. The use of the catalyst decreased the nitrite and enhanced the gaseous compounds formation.Fil: Beltrame, Thiago Favarini. Universidade Federal do Rio Grande do Sul; BrasilFil: Miranda Zoppas, Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Ferreira, J. Z.. Universidade Federal do Rio Grande do Sul; BrasilFil: Marchesini, Fernanda Albana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Bernardes, Andrea Moura. Universidade Federal do Rio Grande do Sul; BrasilIWA Publishing2021-07info: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/11336/170179Beltrame, Thiago Favarini; Miranda Zoppas, Fernanda; Ferreira, J. Z.; Marchesini, Fernanda Albana; Bernardes, Andrea Moura; Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation; IWA Publishing; Water Science And Technology; 84; 1; 7-2021; 200-2150273-1223CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iwaponline.com/wst/article/doi/10.2166/wst.2021.215/82405/Nitrate-reduction-by-electrochemical-processesinfo:eu-repo/semantics/altIdentifier/doi/10.2166/wst.2021.215info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:06Zoai:ri.conicet.gov.ar:11336/170179instacron: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 09:59:06.819CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
title Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
spellingShingle Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
Beltrame, Thiago Favarini
COPPER ELECTRODE
ELECTROCATALYSIS
ELECTROREDUCTION
NITRATE REDUCTION
OPERATIONAL PARAMETERS
PD CATALYST
title_short Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
title_full Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
title_fullStr Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
title_full_unstemmed Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
title_sort Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation
dc.creator.none.fl_str_mv Beltrame, Thiago Favarini
Miranda Zoppas, Fernanda
Ferreira, J. Z.
Marchesini, Fernanda Albana
Bernardes, Andrea Moura
author Beltrame, Thiago Favarini
author_facet Beltrame, Thiago Favarini
Miranda Zoppas, Fernanda
Ferreira, J. Z.
Marchesini, Fernanda Albana
Bernardes, Andrea Moura
author_role author
author2 Miranda Zoppas, Fernanda
Ferreira, J. Z.
Marchesini, Fernanda Albana
Bernardes, Andrea Moura
author2_role author
author
author
author
dc.subject.none.fl_str_mv COPPER ELECTRODE
ELECTROCATALYSIS
ELECTROREDUCTION
NITRATE REDUCTION
OPERATIONAL PARAMETERS
PD CATALYST
topic COPPER ELECTRODE
ELECTROCATALYSIS
ELECTROREDUCTION
NITRATE REDUCTION
OPERATIONAL PARAMETERS
PD CATALYST
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This work aims to present different electroreduction and electrocatalytic processes configurations to treat nitrate contaminated water. The parameters tested were: current density, cell potential, electrode potential, pH values, cell type and catalyst use. It was found that the nitrite ion is present in all process variations used, being the resulting nitrite concentration higher in an alkaline pH. The increase in current density on galvanostatic operation mode provides a greater reduction of nitrate (64%, 1.4 mA cm-2) if compared to the potentiostatic (20%) and constant cell potential (37%) configurations. In a dual-chamber cell the nitrate reduction with current density of 1.4 mA cm-2 was tested and obtained as a NO3- reduction of 85%. The use of single chamber cell presented 32 + 3% of nitrate reduction, indicating that in this cell type the nitrate reduction is smaller than in dual-chamber cell (64%). The presence of a Pd catalyst with 3.1% wt. decreased the nitrite (1.0 N-mg L-1) and increased the gaseous compounds (9.4 N-mg L-1) formation. The best configuration showed that, by fixing the current density, the highest nitrate reduction is obtained and the pH presents a significant influence during the tests. The use of the catalyst decreased the nitrite and enhanced the gaseous compounds formation.
Fil: Beltrame, Thiago Favarini. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Miranda Zoppas, Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Ferreira, J. Z.. Universidade Federal do Rio Grande do Sul; 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 "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Bernardes, Andrea Moura. Universidade Federal do Rio Grande do Sul; Brasil
description This work aims to present different electroreduction and electrocatalytic processes configurations to treat nitrate contaminated water. The parameters tested were: current density, cell potential, electrode potential, pH values, cell type and catalyst use. It was found that the nitrite ion is present in all process variations used, being the resulting nitrite concentration higher in an alkaline pH. The increase in current density on galvanostatic operation mode provides a greater reduction of nitrate (64%, 1.4 mA cm-2) if compared to the potentiostatic (20%) and constant cell potential (37%) configurations. In a dual-chamber cell the nitrate reduction with current density of 1.4 mA cm-2 was tested and obtained as a NO3- reduction of 85%. The use of single chamber cell presented 32 + 3% of nitrate reduction, indicating that in this cell type the nitrate reduction is smaller than in dual-chamber cell (64%). The presence of a Pd catalyst with 3.1% wt. decreased the nitrite (1.0 N-mg L-1) and increased the gaseous compounds (9.4 N-mg L-1) formation. The best configuration showed that, by fixing the current density, the highest nitrate reduction is obtained and the pH presents a significant influence during the tests. The use of the catalyst decreased the nitrite and enhanced the gaseous compounds formation.
publishDate 2021
dc.date.none.fl_str_mv 2021-07
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/11336/170179
Beltrame, Thiago Favarini; Miranda Zoppas, Fernanda; Ferreira, J. Z.; Marchesini, Fernanda Albana; Bernardes, Andrea Moura; Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation; IWA Publishing; Water Science And Technology; 84; 1; 7-2021; 200-215
0273-1223
CONICET Digital
CONICET
url http://hdl.handle.net/11336/170179
identifier_str_mv Beltrame, Thiago Favarini; Miranda Zoppas, Fernanda; Ferreira, J. Z.; Marchesini, Fernanda Albana; Bernardes, Andrea Moura; Nitrate reduction by electrochemical processes using copper electrode: Evaluating operational parameters aiming low nitrite formation; IWA Publishing; Water Science And Technology; 84; 1; 7-2021; 200-215
0273-1223
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://iwaponline.com/wst/article/doi/10.2166/wst.2021.215/82405/Nitrate-reduction-by-electrochemical-processes
info:eu-repo/semantics/altIdentifier/doi/10.2166/wst.2021.215
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
application/pdf
dc.publisher.none.fl_str_mv IWA Publishing
publisher.none.fl_str_mv IWA Publishing
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_ 1842269561513050112
score 13.13397

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