ELECTRO-REGENERATION MECHANISM OF ION-EXCHANGE RESINS IN ELECTRODEIONIZATION

Hong Meng, Changsheng Peng (), Shaoxian Song and Dayao Deng
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Hong Meng: School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100083, P. R. China
Changsheng Peng: Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, San Luis Potosí, C. P. 78210, Mexico
Shaoxian Song: Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, San Luis Potosí, C. P. 78210, Mexico
Dayao Deng: College of Arts & Science of Beijing Union University, Beijing 100083, P. R. China

Surface Review and Letters (SRL), 2004, vol. 11, issue 06, 599-605

Abstract: The regeneration mechanism of ion-exchange resins in the electrodeionization process has been studied with theoretical and experimental investigation. Theoretically, contact forms of resins and membranes can be divided into 4 types, and the possible places of water-splitting are located at the contact faces of different types resins and membranes, for example, cation ion-exchange resins contact with anion ion-exchange resins or membranes, anion ion-exchange resins contact with cation ion-exchange resins and membranes, according to the theoretical calculation. And the exhausted ion-exchange resins can be regenerated by the electrodeionization process with the regeneration efficiency at 70–80% in this work.

Keywords: Electrodeionization; ion-exchange resin; ion-exchange membrane; regeneration; water-splitting (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1142/S0218625X04006542

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