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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/31705
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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 Técnicas2025-09-03T09:51:18Zoai: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:34982025-09-03 09:51:18.753CONICET 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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1842269087253659648 |
score |
13.13397 |