Reduction of polarization in electrodialysis by ion-conducting spacers

Ora Kedem

doi:10.1016/S0011-9164(00)84095-3

Reduction of polarization in electrodialysis by ion-conducting spacers

Ora Kedem

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

A new method to decrease polarization in electrodialysis is suggested, with the aid of ion-conducting spacers. Spacers were prepared and tested. It was found that high current efficiency can be preserved at high current densities, in the present experiments up to 30 mA/cm² for a 0.011 N dialysate. Resistance of the dialysate compartment was lower than that corresponding to a homogeneous layer of solution for dilute dialysates. An open stack design made possible by the spacer is discussed.

Original language	English
Pages (from-to)	105-118
Number of pages	14
Journal	Desalination
Volume	16
Issue number	1
DOIs	https://doi.org/10.1016/S0011-9164(00)84095-3
State	Published - 1 Jan 1975
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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10.1016/S0011-9164(00)84095-3

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abstract = "A new method to decrease polarization in electrodialysis is suggested, with the aid of ion-conducting spacers. Spacers were prepared and tested. It was found that high current efficiency can be preserved at high current densities, in the present experiments up to 30 mA/cm2 for a 0.011 N dialysate. Resistance of the dialysate compartment was lower than that corresponding to a homogeneous layer of solution for dilute dialysates. An open stack design made possible by the spacer is discussed.",

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AB - A new method to decrease polarization in electrodialysis is suggested, with the aid of ion-conducting spacers. Spacers were prepared and tested. It was found that high current efficiency can be preserved at high current densities, in the present experiments up to 30 mA/cm2 for a 0.011 N dialysate. Resistance of the dialysate compartment was lower than that corresponding to a homogeneous layer of solution for dilute dialysates. An open stack design made possible by the spacer is discussed.

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Reduction of polarization in electrodialysis by ion-conducting spacers

Abstract

ASJC Scopus subject areas

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