Nitrate reduction of brines from water desalination plants by membrane electrolysis

Autores
Bosko, María Laura; Rodrigues, M. A. S.; Ferreira, Jane Z.; Miro, Eduardo Ernesto; Bernardes, Andrea Moura
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The disposal of the saline effluent generated during membrane water desalination by electrodialysis (ED) or reverse osmosis (RO) is an increasing problem worldwide, especially for the desalination of inland brackish water. Electrolysis can be an alternative to the denitrification of brines by the reduction of nitrates to the desired product (N2). Nevertheless, in a paired electrolysis cell the reduced products could be re-oxidized in the anode by the reverse reactions; for example, nitrite could be again converted to nitrate. Membrane electrolysis can avoid these reactions. The aim of this study was to assess the efficacy of the membrane electrolysis technique in the reduction of nitrate in water. The experiments were performed in an electrochemical cell with two compartments separated by a cation-exchange membrane, the cathode being made of copper and the anode of titanium oxide and ruthenium oxide (70TiO2/30RuO2). Nitrite, ammonium and nitrogen containing gases (most of them N2) were the reaction products. The best value was achieved with a cell voltage of 9 V and an initial concentration of 526 mg/L of NO3−. Under these conditions, high conversion to nitrite and gaseous compounds was registered with the formation of just 7.8 mg/L of ammonium.
Fil: Bosko, María Laura. 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: Rodrigues, M. A. S.. Universidade Federação de Estabelecimentos de Ensino Superior em Novo Hamburgo; Brasil
Fil: Ferreira, Jane Z.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Miro, Eduardo Ernesto. 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. Universidade Federal do Rio Grande do Sul; Brasil
Materia
Brines
Nitrate Reduction
Electrodialysis
Hydrogenation
Membrane Electrolysis
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:11336/31705
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Nitrate reduction of brines from water desalination plants by membrane electrolysisBosko, María LauraRodrigues, M. A. S.Ferreira, Jane Z.Miro, Eduardo ErnestoBernardes, Andrea MouraBrinesNitrate ReductionElectrodialysisHydrogenationMembrane Electrolysishttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The disposal of the saline effluent generated during membrane water desalination by electrodialysis (ED) or reverse osmosis (RO) is an increasing problem worldwide, especially for the desalination of inland brackish water. Electrolysis can be an alternative to the denitrification of brines by the reduction of nitrates to the desired product (N2). Nevertheless, in a paired electrolysis cell the reduced products could be re-oxidized in the anode by the reverse reactions; for example, nitrite could be again converted to nitrate. Membrane electrolysis can avoid these reactions. The aim of this study was to assess the efficacy of the membrane electrolysis technique in the reduction of nitrate in water. The experiments were performed in an electrochemical cell with two compartments separated by a cation-exchange membrane, the cathode being made of copper and the anode of titanium oxide and ruthenium oxide (70TiO2/30RuO2). Nitrite, ammonium and nitrogen containing gases (most of them N2) were the reaction products. The best value was achieved with a cell voltage of 9 V and an initial concentration of 526 mg/L of NO3−. Under these conditions, high conversion to nitrite and gaseous compounds was registered with the formation of just 7.8 mg/L of ammonium.Fil: Bosko, María Laura. 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: Rodrigues, M. A. S.. Universidade Federação de Estabelecimentos de Ensino Superior em Novo Hamburgo; BrasilFil: Ferreira, Jane Z.. Universidade Federal do Rio Grande do Sul; BrasilFil: Miro, Eduardo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Bernardes, Andrea Moura. Universidade Federal do Rio Grande do Sul; BrasilElsevier2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31705Bernardes, Andrea Moura; Ferreira, Jane Z.; Rodrigues, M. A. S.; Bosko, María Laura; Miro, Eduardo Ernesto; Nitrate reduction of brines from water desalination plants by membrane electrolysis; Elsevier; Journal of Membrane Science; 451; 10-2013; 276-2840376-7388CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0376738813008041info:eu-repo/semantics/altIdentifier/doi/10.1016/j.memsci.2013.10.004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:24Zoai:ri.conicet.gov.ar:11336/31705instacron: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:34982025-09-29 09:47:24.303CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nitrate reduction of brines from water desalination plants by membrane electrolysis
title Nitrate reduction of brines from water desalination plants by membrane electrolysis
spellingShingle Nitrate reduction of brines from water desalination plants by membrane electrolysis
Bosko, María Laura
Brines
Nitrate Reduction
Electrodialysis
Hydrogenation
Membrane Electrolysis
title_short Nitrate reduction of brines from water desalination plants by membrane electrolysis
title_full Nitrate reduction of brines from water desalination plants by membrane electrolysis
title_fullStr Nitrate reduction of brines from water desalination plants by membrane electrolysis
title_full_unstemmed Nitrate reduction of brines from water desalination plants by membrane electrolysis
title_sort Nitrate reduction of brines from water desalination plants by membrane electrolysis
dc.creator.none.fl_str_mv Bosko, María Laura
Rodrigues, M. A. S.
Ferreira, Jane Z.
Miro, Eduardo Ernesto
Bernardes, Andrea Moura
author Bosko, María Laura
author_facet Bosko, María Laura
Rodrigues, M. A. S.
Ferreira, Jane Z.
Miro, Eduardo Ernesto
Bernardes, Andrea Moura
author_role author
author2 Rodrigues, M. A. S.
Ferreira, Jane Z.
Miro, Eduardo Ernesto
Bernardes, Andrea Moura
author2_role author
author
author
author
dc.subject.none.fl_str_mv Brines
Nitrate Reduction
Electrodialysis
Hydrogenation
Membrane Electrolysis
topic Brines
Nitrate Reduction
Electrodialysis
Hydrogenation
Membrane Electrolysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The disposal of the saline effluent generated during membrane water desalination by electrodialysis (ED) or reverse osmosis (RO) is an increasing problem worldwide, especially for the desalination of inland brackish water. Electrolysis can be an alternative to the denitrification of brines by the reduction of nitrates to the desired product (N2). Nevertheless, in a paired electrolysis cell the reduced products could be re-oxidized in the anode by the reverse reactions; for example, nitrite could be again converted to nitrate. Membrane electrolysis can avoid these reactions. The aim of this study was to assess the efficacy of the membrane electrolysis technique in the reduction of nitrate in water. The experiments were performed in an electrochemical cell with two compartments separated by a cation-exchange membrane, the cathode being made of copper and the anode of titanium oxide and ruthenium oxide (70TiO2/30RuO2). Nitrite, ammonium and nitrogen containing gases (most of them N2) were the reaction products. The best value was achieved with a cell voltage of 9 V and an initial concentration of 526 mg/L of NO3−. Under these conditions, high conversion to nitrite and gaseous compounds was registered with the formation of just 7.8 mg/L of ammonium.
Fil: Bosko, María Laura. 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: Rodrigues, M. A. S.. Universidade Federação de Estabelecimentos de Ensino Superior em Novo Hamburgo; Brasil
Fil: Ferreira, Jane Z.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Miro, Eduardo Ernesto. 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. Universidade Federal do Rio Grande do Sul; Brasil
description The disposal of the saline effluent generated during membrane water desalination by electrodialysis (ED) or reverse osmosis (RO) is an increasing problem worldwide, especially for the desalination of inland brackish water. Electrolysis can be an alternative to the denitrification of brines by the reduction of nitrates to the desired product (N2). Nevertheless, in a paired electrolysis cell the reduced products could be re-oxidized in the anode by the reverse reactions; for example, nitrite could be again converted to nitrate. Membrane electrolysis can avoid these reactions. The aim of this study was to assess the efficacy of the membrane electrolysis technique in the reduction of nitrate in water. The experiments were performed in an electrochemical cell with two compartments separated by a cation-exchange membrane, the cathode being made of copper and the anode of titanium oxide and ruthenium oxide (70TiO2/30RuO2). Nitrite, ammonium and nitrogen containing gases (most of them N2) were the reaction products. The best value was achieved with a cell voltage of 9 V and an initial concentration of 526 mg/L of NO3−. Under these conditions, high conversion to nitrite and gaseous compounds was registered with the formation of just 7.8 mg/L of ammonium.
publishDate 2013
dc.date.none.fl_str_mv 2013-10
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/11336/31705
Bernardes, Andrea Moura; Ferreira, Jane Z.; Rodrigues, M. A. S.; Bosko, María Laura; Miro, Eduardo Ernesto; Nitrate reduction of brines from water desalination plants by membrane electrolysis; Elsevier; Journal of Membrane Science; 451; 10-2013; 276-284
0376-7388
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31705
identifier_str_mv Bernardes, Andrea Moura; Ferreira, Jane Z.; Rodrigues, M. A. S.; Bosko, María Laura; Miro, Eduardo Ernesto; Nitrate reduction of brines from water desalination plants by membrane electrolysis; Elsevier; Journal of Membrane Science; 451; 10-2013; 276-284
0376-7388
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/S0376738813008041
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.memsci.2013.10.004
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
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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score 13.069144

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