Abstract
This chapter reviews the current and potential electrodialysis (ED) applications that appear to be of particular interest for the food and drinks sector in the short-medium term, as well as the basic mass transport equations that might help ED unit design or optimization. Electrodialysis (ED) is a unit operation for the separation or concentration of ions in solutions based on their selective electromigration through semipermeable membranes under the influence of a potential gradient. The current largest area of application for ED is in the desalination of brackish water for the production of potable water and de-ashing of milk whey to obtain valuable raw materials for baby foods. However, ED applications are still in their infancy and ED-processing potentialities have not been completely exploited probably because of the high specific electromembrane costs or their short lifetime.
Published Version
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