Method and system for purifying liquid

Details Method and system for purifying liquid Method and system for purifying liquid

1974-06-27

1976-10-12

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 37R, 210 38B, 210 40, C02B 142, C02B 156

Patent

active

039856488

ABSTRACT:
A method and system combining filtration and ion-exchange structures for removing contaminants from liquids. In overall concept, contaminated liquid is passed through filtering mediums to remove particulate matter from the incoming contaminated liquid. Organics are removed from the liquid by passage through adsorbent non-ionic type resins. The liquid is then passed through strong acid cation exchange resins, weak base anion exchange resins, weak acid cation exchange resins, and strong base anion exchange resins arranged in a predetermined location in the liquid flow path to provide optimized contaminant removal. One of the optimization techniques is through the pH adjustment of the liquid at predetermined points in the flow path. Additionally, the liquid to be purified is passed through mixed bed polisher resins as well as chelation resins to provide a final substantially contaminant free liquid which is returned to use in a closed loop fashion.

REFERENCES:
patent: 3408289 (1968-10-01), Gustafson
patent: 3537989 (1970-11-01), Crits
patent: 3618589 (1971-11-01), Tavani
patent: 3697419 (1969-07-01), Grant
patent: 3715339 (1973-02-01), Rainer
patent: 3753899 (1973-08-01), Kunin et al.
patent: 3758405 (1973-09-01), Fremont

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