Apparatus for purifying water, especially salt water, by reverse

Details Apparatus for purifying water, especially salt water, by reverse Apparatus for purifying water, especially salt water, by reverse

1986-12-11

1988-04-26

Cintins, Ivars

Liquid purification or separation

Casing divided by membrane into sections having inlet

Cylindrical membrane

B01D 1301

Patent

active

047403012

ABSTRACT:
The invention concerns an apparatus for purifying primary water so as to produce in batchwise manner potable fresh water by reverse osmosis in the course of discontinuous operational stages. This apparatus comprises a primary-water chamber (3), a stopper (7) to fill it, a potable-water collecting connector (12) and stub, a semi-permeable membrane (10) housed in the chamber (3), a movable piston (15) which may enter said chamber between a retracted position and a maximum penetration position, and mechanical means to drive the piston which include an intake handcrank (23), two meshing gears (18, 22) and a screw (17) driven by one of the gears and supporting the piston. The dimensions of the chamber (3) are such that its total available capacity (V.sub.1) is at least three times the volume (V.sub.2) swept by the piston in its displacement between the retracted and the maximum-penetration positions.

REFERENCES:
patent: 4070280 (1978-01-01), Bray

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