Energy efficient water purification system

Details Energy efficient water purification system Energy efficient water purification system

1993-06-03

1995-03-28

Drodge, Joseph W.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210149, 210259, 210409, 210418, 210646, 210797, B01D 3704

Patent

active

054014212

ABSTRACT:
An energy efficient water purification system which maintains critical operating temperatures for effective reverse osmosis. The system includes hot and cold water inlets providing a flow of heated feed water, a regeneratable pre-treatment system for treating the heated feed water, a reverse osmosis machine for receiving the flow of pre-treated feed water heated to a given temperature to purify the feed water and discharge impurities in a discharge stream and feed the purified feed water to an outlet for end use, and a valve to control the temperature of the heated feed water entering the pre-treatment system, and an energy conserving apparatus comprising a valve arrangement which interrupts the heated water flow into the pre-treatment system and substitutes fresh unheated feed water during regeneration.

REFERENCES:
patent: 2332995 (1943-10-01), Eaton
patent: 3352779 (1967-11-01), Austin et al.
patent: 4617115 (1986-10-01), Vantard
patent: 4804474 (1989-02-01), Blum
patent: 5093012 (1992-03-01), Bundy et al.
patent: 5203496 (1993-04-01), Kline
patent: 5336165 (1994-08-01), Twardowski

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