Liquid purification or separation – Flow – fluid pressure or material level – responsive – Plural elements controlled
Patent
1995-05-24
1996-07-02
Fortuna, Ana
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Plural elements controlled
210134, 210136, 210 87, 210 91, 2103216, 2104161, 2104331, 417374, 417541, B01D 2130, B01D 2400
Patent
active
055318878
ABSTRACT:
Reverse osmosis, particularly for manually operating water desalination, is achieved using semipermeable membranes which selectively permeate purified water from a feed solution pressurized by reciprocating piston or diaphragm pump. The manual pump action is assisted by using two pump pistons to provide a continuous flow of feed solution to the concentrate side of the membrane to continuously flush the membrane surface. The concentration polarization is controlled by exhausting the high pressure concentrate to atmosphere through an orifice and relief valve.
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Fortuna Ana
Howell Laboratories, Inc.
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