FIELD: production of drinking water. SUBSTANCE: filtering element has spindle, rolled filtering material being displaced on it. Said material is manufactured as cloth or tricot, its fibers are produced on the base of activated coal, surface of fibers is covered by film of silicium dioxide. Ratio of activated coal and SiO2 is 90-99 mass % and 1-10 mass % respectively. Specific surface of activated coal is 1800-2500 m2/g, volume of micropores is 0.5-0.75 cm3/g. EFFECT: decreases to desired indexes quantity of impurities in water. 2 cl, 2 dwg, 1 tbl
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Authors
Dates
1994-09-15—Published
1992-11-30—Filed