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Science 22 March 1968:
Vol. 159. no. 3821, pp. 1364 - 1365
DOI: 10.1126/science.159.3821.1364
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Articles

Desalination by Osmosis-Reverse Osmosis Couple

Karel Popper 1, Richard L. Merson 1, and Wayne M. Camirand 1

1 Agricultural Research Service, U.S. Department of Agriculture, Albany, California 94710

Water is separated from brines by a semipermeable membrane. Water flows by osmosis across the membrane into a sealed chamber where it creates pressure. This pressure is transmitted by a water-immiscible liquid piston to a second chamber where it effects reverse osmosis. Water-removal rates are calculated.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)