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dc.contributor.author
Beltrame, Thiago Favarini
dc.contributor.author
Coelho, Vanessa
dc.contributor.author
Marder, Luciano
dc.contributor.author
Ferreira, Jane Zoppas
dc.contributor.author
Marchesini, Fernanda Albana
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dc.contributor.author
Bernardes, Andrea Moura
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dc.date.available
2018-05-03T23:21:44Z
dc.date.issued
2017-08
dc.identifier.citation
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
dc.identifier.issn
0959-3330
dc.identifier.uri
http://hdl.handle.net/11336/44101
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
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dc.rights
info:eu-repo/semantics/embargoedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Nitrate Reduction
dc.subject
Membrane Concentrated Brines
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Electroreduction
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Elevtroe the Cu
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-03T16:44:23Z
dc.journal.pagination
1-48
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Beltrame, Thiago Favarini. Ufrgds Lacor; Brasil
dc.description.fil
Fil: Coelho, Vanessa. Ufrgds Lacor; Brasil
dc.description.fil
Fil: Marder, Luciano. Ufrgds Lacor; Brasil
dc.description.fil
Fil: Ferreira, Jane Zoppas. Ufrgds Lacor; Brasil
dc.description.fil
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
dc.description.fil
Fil: Bernardes, Andrea Moura. Ufrgds Lacor; Brasil
dc.journal.title
Environmental Technology
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dc.rights.embargoDate
2018-08-31
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/09593330.2017.1367422
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/09593330.2017.1367422
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