FILTER FOR PURIFYING WATER Russian patent published in 1994 - IPC

Abstract RU 2009692 C1

FIELD: purifying water. SUBSTANCE: filter has body in which filter layer, drainage device and agent for regenerating and crushing claydite are displaced. Filter layer is mixture of coarse and fine-grained charging. Additional layer of brittle filter material (e. g. claydite) is displaced between filter layer and drainage device. This material has grain's size 4-6 times more that of coarse-grained charging. EFFECT: improves filtration process. 3 cl, 1 dwg

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RU 2 009 692 C1

Authors

Sil'Chenkov A.A.

Lozovoj V.N.

Shul'Ga V.N.

Kostjukovich V.M.

Dates

1994-03-30—Published

1989-05-18—Filed