Abstract:SynopsisThe advantages of carrying out reverse osmosis desalination with improved membranes at low pressures have been pointed out. Cellulose acetate (CA) semipermeable membranes developed with low air-exposure periods by Sirkar et al. from novel Manjikian-type casting solutions having high CA content, partial replacement of acetone by dioxane, and small amounts of ZnClz (or none) have been tested for the following combinations of operating pressure (lb/in?)/feed brine concentration (in ppm): 250/5000; 300/750… Show more
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