METHOD OF PURIFYING UNDERGROUND WATER FROM IRON AND MANGANESE Russian patent published in 1998 - IPC

Abstract RU 2105729 C1

FIELD: water treatment. SUBSTANCE: method includes consecutive two-step filtration through grained charge while water is supplied from below upward in the first step and from above downward in the second step, water before the first step being subjected to simplified aeration and before the second step being ozonized in quantity 3.5-5.5 mg/cu.m. Diameter of grained charge in the two steps is 1.25-2.5 and 0.63-1.25 mm, respectively. EFFECT: reduced ozone consumption and water treatment cost. 2 tbl

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RU 2 105 729 C1

Authors

Fomin S.N.

Antonov L.A.

Dates

1998-02-27—Published

1996-10-03—Filed