Electrochemical softening of concentrates from an electrodialysis brackish water desalination plant: Efficiency enhancement using a three-dimensional cathode
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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor | Electroquímica Aplicada y Electrocatálisis | es_ES |
dc.contributor | Petrología Aplicada | es_ES |
dc.contributor.author | Sanjuán, Ignacio | - |
dc.contributor.author | Benavente, David | - |
dc.contributor.author | García García, Vicente | - |
dc.contributor.author | Expósito Rodríguez, Eduardo | - |
dc.contributor.author | Montiel, Vicente | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Física | es_ES |
dc.contributor.other | Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente | es_ES |
dc.date.accessioned | 2018-10-11T13:10:37Z | - |
dc.date.available | 2018-10-11T13:10:37Z | - |
dc.date.issued | 2019-01-08 | - |
dc.identifier.citation | Separation and Purification Technology. 2019, 208: 217-226. doi:10.1016/j.seppur.2018.01.066 | es_ES |
dc.identifier.issn | 1383-5866 (Print) | - |
dc.identifier.issn | 1873-3794 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/81887 | - |
dc.description.abstract | The electrochemical softening method to remove hardness from water has not been applied in desalination practice due to a high cathodic area requirement. In this work, the use of a 3D stainless steel wool cathode is proposed to overcome this technical limitation. An extensive comparison between the 3D cathode and a 2D Ti mesh has been presented, showing higher hardness removal for the 3D one. Experiments have been conducted with waters similar to concentrates derived from a brackish water treatment by electrodialysis. In addition, the method has been proved to be efficient for different water compositions in terms of hardness, alkalinity or the presence of an anti-scalant. The main influencing parameters (flow rate and current density) have been studied and it can be concluded that lower flow rates (below 1.2 L h−1) give rise to a better efficiencies and 100 A m−2 is the optimum current density. Moreover, the precipitate was characterised by SEM, EDX and XRD showing that Ca2+ is removed as calcite and aragonite (CaCO3), whereas Mg2+ is precipitated as brucite (Mg(OH)2). Finally, long-term experiments revealed that the 3D stainless steel cathode has a better performance than the 2D Ti mesh, but only at short times. | es_ES |
dc.language | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | © 2018 Elsevier B.V. | es_ES |
dc.subject | Electrochemical softening | es_ES |
dc.subject | Hardness removal | es_ES |
dc.subject | Three-dimensional electrodes | es_ES |
dc.subject | Electroprecipitation | es_ES |
dc.subject | Concentrate | es_ES |
dc.subject | Wastewater treatment | es_ES |
dc.subject.other | Química Física | es_ES |
dc.subject.other | Petrología y Geoquímica | es_ES |
dc.title | Electrochemical softening of concentrates from an electrodialysis brackish water desalination plant: Efficiency enhancement using a three-dimensional cathode | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.peerreviewed | si | es_ES |
dc.identifier.doi | 10.1016/j.seppur.2018.01.066 | - |
dc.relation.publisherversion | https://doi.org/10.1016/j.seppur.2018.01.066 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
Aparece en las colecciones: | INV - LEQA - Artículos de Revistas INV - PETRA - Artículos de Revistas |
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2019_Sanjuan_etal_SeparPurifTech_final.pdf | Versión final (acceso restringido) | 1,29 MB | Adobe PDF | Abrir Solicitar una copia |
2019_Sanjuan_etal_SeparPurifTech_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,48 MB | Adobe PDF | Abrir Vista previa |
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