Reverse-osmosis apparatus for producing fresh water from seawate

Details Reverse-osmosis apparatus for producing fresh water from seawate Reverse-osmosis apparatus for producing fresh water from seawate

1982-04-06

1984-06-05

Spear, Jr., Frank A.

Liquid purification or separation

Structural installation

Geographic

2102421, 2104332, B01S 3100

Patent

active

044526962

ABSTRACT:
The invention concerns a fresh-water producing apparatus to be immersed in a marine medium and of the type comprising at least one reverse-osmosis selective semi-permeable membrane.
This apparatus comprises three stages: a fresh-water stage consisting of collecting means for the produced chamber provided with a semi-permeable membrane placed between this chamber and the fresh-water collecting means; and, a third stage comprising a mobile piston and an hermetic chamber having a gaseous atmosphere. The piston is designed to enter in variable depth the high-pressure chamber by one side having an effective area s and comprising an opposite side with an effective area S exceeding the area s and arranged to be at the pressure of the marine medium.

REFERENCES:
Binder, Fluid Mechanics, 1950, pp. 317-324.

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