Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-08-18
1979-04-10
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 35, 210 82, B01D 1506
Patent
active
041487273
ABSTRACT:
A relatively compact and inexpensive technique for the two step decontamination of a liquid such as water is described. The liquid to be treated is propelled upwardly through a pair of vertically superposed, lower and upper chambers defined in a common treatment tank and separated by a liquid-permeable nozzle member. A first decontamination-removing substance, such as adsorbing material or an ion exchanger, is disposed in the lower chamber, while a second decontamination-removing substance such as activated charcoal is disposed in the upper chamber. The first substance, when spent, is propelled out of the lower chamber by a transport liquid, externally renewed, and recirculated back into the second chamber as a fresh charge by passing through a central pipe that extends through the upper chamber and the nozzle member to terminate in the lower chamber. The second substance, when spent, is renewed either by means of direct rinsing with the transport liquid flowing downwardly into the lower chamber as discussed above, or is first propelled out of the tank by means of such transport liquid and is then externally rinsed and then recirculated to the upper chamber. The fully-treated liquid exits from the top of the common treatment tank.
REFERENCES:
patent: 3130151 (1964-04-01), Levendusky
patent: 3554377 (1971-01-01), Miller
patent: 3679581 (1972-07-01), Kunz
patent: 3719591 (1973-03-01), Crits
patent: 3879287 (1975-04-01), Porter
patent: 3960721 (1976-06-01), Heskett
Cintins Ivars
Haeger & Elsaesser
Hart Charles N.
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