Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 538394
Title Desalination with porous electrodes : Mechanisms of ion transport and adsorption
Author(s) Dykstra, Jouke E.
Source Wageningen University. Promotor(en): A. van der Wal, co-promotor(en): P.M. Biesheuvel. - Wageningen : Wageningen University - ISBN 9789463438339 - 191
Department(s) Environmental Technology
WIMEK
Publication type Dissertation, internally prepared
Publication year 2018
Abstract

Capacitive deionization (CDI) is an electrochemical technology to adsorb ions from solution by alternately charging and discharging two porous electrodes. During charging, a voltage is applied between the electrodes, and ions are adsorbed into electrical double layers (EDLs) formed in the micropores of the electrode. As a result, feed water is desalinated. After the electrodes are saturated with salt, they are discharged and ions are released, resulting in a concentrated effluent stream. Recently there has been an growing scientific and commercial interest in CDI technology, and various applications are considered, such as wastewater remediation for cooling towers, water softening, and desalination of brackish water. In this Thesis we study mechanisms of ion transport and adsorption in CDI technology, and we address three topics: I) energy consumption and resistance identification, II) ion-selective adsorption, and III) long-term operation and pH changes.

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