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dc.contributor.author
Favarini Beltrame, Thiago  
dc.contributor.author
Gomes, Maria Carolina  
dc.contributor.author
Marder, Luciano  
dc.contributor.author
Marchesini, Fernanda Albana  
dc.contributor.author
Ulla, Maria Alicia del H.  
dc.contributor.author
Bernardes, Andrea Moura  
dc.date.available
2021-10-29T16:15:34Z  
dc.date.issued
2020-06  
dc.identifier.citation
Favarini Beltrame, Thiago; Gomes, Maria Carolina; Marder, Luciano; Marchesini, Fernanda Albana; Ulla, Maria Alicia del H.; et al.; Use of copper plate electrode and Pd catalyst to the nitrate reduction in an electrochemical dual-chamber cell; Elsevier; Journal of Water Process Engineering; 35; 6-2020; 1-8  
dc.identifier.issn
2214-7144  
dc.identifier.uri
http://hdl.handle.net/11336/145494  
dc.description.abstract
Nitrate is a chemical species usually present in water, lakes and rivers and in high concentration can be dangerous to the human health. In this work, palladium-coated alumina pellets associated to a copper plate electrode were tested, in an electrochemical dual-chamber cell (DCC), for the treatment of solutions containing high nitrate concentration. The tests evaluated how Pd catalyst, current density and pH have an effect on the reduction reaction and on the formation of nitrite, ammonium and gaseous compounds. It was possible to observe that the Pd catalyst has an influence on the products formed, with an increase on the gaseous compounds production. The current density plays also an important role on the treatment, considering that, by applying 1.1 mA cm−2, 59 % of nitrate reduction was observed, while with 1.5 mA cm−2 the reduction was 64 %. The highest selectivity to gaseous compounds and lower selectivity to nitrite were obtained using alumina pellets coated with 2.5 % wt. of Pd, a current density of 1.5 mA cm−2 and with pH adjustment (6.0–6.5). In these conditions, a nitrate reduction of 49 % was obtained, with a selectivity of 64 % to gaseous compounds, 1% to nitrite and 35 % to ammonium. The main novelty of this work is the reduction cell design, by the use of a dual chamber cell and with the catalyst in pellets form. This cell would be suitable for scaling-up the process.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
COPPER ELECTRODE  
dc.subject
ELECTROCATALYTIC PROCESS  
dc.subject
NITRATE REDUCTION  
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PALLADIUM CATALYST  
dc.subject.classification
Otras Ingenierías y Tecnologías  
dc.subject.classification
Otras Ingenierías y Tecnologías  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Use of copper plate electrode and Pd catalyst to the nitrate reduction in an electrochemical dual-chamber cell  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2021-09-07T14:36:48Z  
dc.journal.volume
35  
dc.journal.pagination
1-8  
dc.journal.pais
Países Bajos  
dc.description.fil
Fil: Favarini Beltrame, Thiago. Universidade Federal do Rio Grande do Sul; Brasil  
dc.description.fil
Fil: Gomes, Maria Carolina. Universidade Federal do Rio Grande do Sul; Brasil  
dc.description.fil
Fil: Marder, Luciano. Universidade Federal do Rio Grande do Sul; 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 "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina  
dc.description.fil
Fil: Ulla, Maria Alicia del H.. 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  
dc.description.fil
Fil: Bernardes, Andrea Moura. Universidade Federal do Rio Grande do Sul; Brasil  
dc.journal.title
Journal of Water Process Engineering  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S2214714420300684  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jwpe.2020.101189