Water filter

Details Water filter Water filter

1991-03-29

1992-09-22

Silverman, Stanley S.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210668, 210669, 210719, 210721, 210757, 210758, 210282, 210283, 210284, 210290, C02F 170, C02F 172, C02F 142

Patent

active

051494370

ABSTRACT:
An improved filter device is provided for removing contaminants from water comprising a filter housing having an inlet at one end for water to be purified and an oulet for purified water at an opposing end, said filter device including in sequence first, second and third layers of purification material, a first layer of purification material comprising metallic particles which establish a suitable redox potential in the first layer, a second layer of purification material comprising activated carbon, and a third layer of purification material comprising a weak acid ion exchange resin.

REFERENCES:
patent: 3327859 (1967-06-01), Pall
patent: 3554377 (1971-01-01), Miller
patent: 4196081 (1980-04-01), Pavia
patent: 4368123 (1983-01-01), Stanley
patent: 4642192 (1987-02-01), Heskett
patent: 4851122 (1989-07-01), Stanley

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