METHOD OF SOFTENING INDUSTRIAL WATER Russian patent published in 1998 - IPC

Abstract RU 2109693 C1

FIELD: water treatment. SUBSTANCE: in order to remove hardness salts from water in metallurgy and chemical industry, water is passed through cationite filters. Exhausted filters are regenerated by liquid organic wastes containing detergents with general formula C_nH_2nCOOX where n ≤ 17 and X = sodium, potassium, or hydrogen. EFFECT: essentially lowered hardness of water and reduced treatment cost. 1 tbl

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RU 2 109 693 C1

Authors

Zhulin Nikolaj Vasil'Evich

Zhulina Nina Vasil'Evna

Dates

1998-04-27—Published

1997-01-24—Filed