Method and apparatus for softening and filtering water

Details Method and apparatus for softening and filtering water Method and apparatus for softening and filtering water

1980-10-30

1981-12-15

Therkorn, Ernest G.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210694, 210290, C02F 142, B01D 2310

Patent

active

043058264

ABSTRACT:
Method of and a multilayered filter for softening and filtering water. The water to be softened and filtered flows through a first layer of particles of activated carbon, a second layer of beads of an organic ion cation exchange resin, a third layer of granules of sodium aluminium silocate, and a fourth layer of grains of filter sand which layers are arranged vertically in a tank. The filter comprises the four above identified layers of filter materials.

REFERENCES:
patent: 1997830 (1935-04-01), Michaud
patent: 2162809 (1939-06-01), GroaK
patent: 2605901 (1952-08-01), Morrison
patent: 3148962 (1964-09-01), Dellinger
patent: 3201346 (1965-08-01), Benedict
patent: 3204770 (1965-09-01), Brink
patent: 3664506 (1972-05-01), Meunier
patent: 3715035 (1973-02-01), Teeple
patent: 3735895 (1973-05-01), Roper
patent: 4054526 (1977-10-01), Muller
patent: 4094778 (1978-06-01), Denny

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