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Desalination of sea water by direct osmosis

โœ Scribed by Richard E. Kravath; Joanna A. Davis

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
317 KB
Volume
16
Category
Article
ISSN
0011-9164

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โœฆ Synopsis

Sea water can be desalinated by direct osmosis across a cellulose acetate membrane by using the osmotic pressure of a hypertonic glucose solution as the energy source. The resulting glucose solution is potable. This may prove useful for an emeqency water supply in lifeboats. Recent developments in membrane science (I) have led to the commercial availability of stable membranes rhat are permeable to water but relatively impermeable to sugar and salt. These membranes are used for desalination of water by reverse osmosis. In reverse osmosis, high pressures are used to force water from the sea water across the membrane by counteracting the osmotic pressure of the

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