Method of removing salts of the alkali earth metal group from wa

Liquid purification or separation – Processes – Ion exchange or selective sorption

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C02F 900

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active

045004331

ABSTRACT:
A method of removing salts of the alkali earth metal group from water is provided wherein water is supplied at a controlled flow to a pair of serially connected five-micron prefilters which remove contaminants and reduce the flow rate. The effluent is then passed through at least twelve parallel connected activated charcoal filter units where the flow is reduced to approximately 0.5 g.p.m. allowing additional time for the alkali salt to be adsorbed in the charcoal.

REFERENCES:
patent: 3056499 (1962-10-01), Liddell
patent: 4049548 (1977-09-01), Dickerson
patent: 4196081 (1980-04-01), Pavia

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