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Evaluating capacitive deionization for water desalination by direct determination of chloride ions

AutorDíaz Baizán, Patricia ; González Arias, Zoraida ; Granda Ferreira, Marcos ; Menéndez López, Rosa María ; Santamaría Ramírez, Ricardo ; Blanco Rodríguez, Clara
Palabras claveDesalination
Capacitive deionization
Ionic conductivity
Capacitance
Chloride selective electrode
Fecha de publicaciónmay-2014
EditorElsevier
CitaciónDesalination 344: 396-401 (2014)
ResumenIonic conductivity and capacitance measurements are widely used methods for evaluating the desalination efficiency in capacity deionization processes. In this study, these methods are revised and several problems associated to them are identified and evaluated. Furthermore, a new method based on the determination of the chloride ion concentration by means of a chloride selective electrode is proposed as a more reliable alternative for evaluating the desalination performance in these systems. This method has been shown not only to be precise in a wide range of salt concentrations but also to be independent of pH, one of the main limitations of the determinations based on ionic conductivity measurements.
Versión del editorhttp://dx.doi.org/10.1016/j.desal.2014.04.013
URIhttp://hdl.handle.net/10261/113967
DOI10.1016/j.desal.2014.04.013
ISSN0011-9164
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