Water purification system fluid path

Details Water purification system fluid path Water purification system fluid path

1988-01-15

1988-09-27

Sever, Frank

Liquid purification or separation

Constituent mixture variation responsive

With membrane

210136, 210137, 2101952, 210196, 2102572, 2103216, B01D 1300

Patent

active

047739916

ABSTRACT:
A water purification system includes a water purifying module having an inlet, a first outlet for purified product water and a second outlet for untreated concentrate water. An inlet line is connected to the module inlet, a purified water line is connected to the first outlet, and a drain line is connected to the second outlet. A first return line including a check valve is connected between the purified water line and the inlet line, and a second return line is connected between the drain line and the inlet line. Water to be treated is supplied to the inlet line by a pressure regulator, which provides regulated water pressures in the inlet line, the first and second return lines, and the purified water line.

REFERENCES:
patent: 3708069 (1973-01-01), Clark
patent: 4210533 (1980-07-01), Astz
patent: 4342651 (1982-08-01), Ahrens
patent: 4402940 (1983-09-01), Nose et al.
patent: 4498982 (1985-02-01), Skinner
Klein, E. et al, "Evaluation of Hemodialyzers and Dialysis Membranes", Artificial Organs, Feb. 1978, vol. 2, No. 1, pp. 35-41.
Sourirajan, S., Reverse Osmosis, Academic Press, New York, 1970, p. 444.
Mattson, R. J. et al, "Improved Water Quality", Chem. Eng. Prog., vol. 65, No. 1, Jan. 1969, pp. 62-68.

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