FIELD: water purification. SUBSTANCE: iron is removed by way of aeration followed by filtration through polymer membranes (e.g., of cellulose acetate or polysulfone) involving water circulation under pressure 0.08-0.35 MPa and velocity of flow over membrane 2-5 m/s. EFFECT: improved procedure. 2 cl, 1 tbl
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Authors
Dates
1997-05-20—Published
1994-11-08—Filed