Electrodialysis suppliers

Like many other specialities, electrodialysis plants are purchased as complete packages from a few available suppliers. Membrane replacement is about 10% per year. Even with prefiltering the feed, cleaning of membranes may be required at intervals of a few months. The comparative economics of electrodialysis for desalting brackish waters is discussed by Belfort (1984) for lower salinities, elecfrodialysis and reverse osmosis are competitive, but for higher ones elecfrodialysis is inferior. Elecfrodialysis has a number of important unique applications, for removal of high contents of minerals from foods and pharmaceuticals, for recovery of radioactive and other substances from dilute solutions, in electro-oxidation reduction processes and others. 

Desalination of brackish water in inland regions is an area of the electrochemical industry which should also experience significant growth. The recent droughts throughout the country have given new impetus to desalination projects. Electrodialysis is currently used by municipalities within the United States for the desalination of brackish water. A recent report published by Ionics Incorporated of Cambridge, Massachusetts, the major supplier of electrodialysis plants for municipal use, states ... 

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