Apparatus for purifying and dispensing water with stagnation pre

Details Apparatus for purifying and dispensing water with stagnation pre Apparatus for purifying and dispensing water with stagnation pre

1987-03-06

1988-09-27

Spear, Frank

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Check valve

2101952, 21032169, B01D 1300

Patent

active

047739932

ABSTRACT:
An apparatus for producing pure water from raw water, comprises a reverse osmotic membrane unit, a polisher, an ultraviolet sterilizer, a high pressure pump for forcing raw water to flow through a reverse osmotic membrane in said reverse osmotic membrane unit to produce pure water permeated therethrough, and for feeding pure water to a use point, and a circulating line extending between said use point and a suction side of said high pressure pump for circulating pure water therebetween. With this construction, degradation of pure water due to stagnation is avoided.

REFERENCES:
patent: 3276458 (1966-10-01), Iversen et al.
patent: 3472765 (1969-10-01), Budd et al.
patent: 4246101 (1981-01-01), Selby
patent: 4342651 (1982-08-01), Ahrens
patent: 4528093 (1985-07-01), Winer
patent: 4610790 (1986-09-01), Reti et al.
Sourirajan, S., Reverse Osmosi, Academic Press, N.Y., 1970, pp. 465-467.

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