Abstract

The development of electrodialysis is described with its use as a practical process in demineralizing and concentrating solutions of electrolytes. The applications and basic types of ion‐exchange membranes for use in electrodialysis are discussed. Membrane properties such as electrical resistance, permselectivity, ionic capacity, solvent transfer and chemical resistance are given in detail as being particularly important in characterizing electrodialytic properties of ion‐exchange membranes. Demineralization of cheese whey is dealt with fully and various problems and techniques discussed. Variants of electrodialysis ‐ transport depletion, ion substitution and electro osmosis are also given. (Editor's summary)

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