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2 237 024

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IPC

(21) (22)

Application

2003130990/15, 2003-10-21

(24)

Start date

2003-10-21

(22)

Actual filing date

2003-10-21

(45)

Published

2004-09-27

(72)

Inventor

Tepaev V.A.Gonchar A.V.Jushchenko A.S.Deljan V.I.Schastlivtsev S.N.Bogacheva V.V.Dunjashev B.Z.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

WASTE WATER TREATMENT PROCESS Russian patent published in 2004 - IPC

Abstract RU 2237024 C1

FIELD: waste water treatment.

SUBSTANCE: invention relates to treatment of waste waters from various plants, especially metallurgical plants, to remove suspended materials by the help high-molecular flocculants, the latter in particular being copolymer of (i) anionic high-molecular compound selected from polymerization products of acrylonitrile, ethyl methacrylate, and itaconic acid and (ii) cationic polyelectrolyte, namely polydimethyldiallylammonium fluoride. Copolymer is added in amounts of 0.2 to 0.8 mg per 1 dm³ waste water.

EFFECT: increased waste water purification degree and increased slurry sedimentation velocity, especially in case of treating metallurgical waste waters.

2 cl, 3 tbl, 4 ex

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RU 2 237 024 C1

Authors

Tepaev V.A.

Gonchar A.V.

Jushchenko A.S.

Deljan V.I.

Schastlivtsev S.N.

Bogacheva V.V.

Dunjashev B.Z.

Dates

2004-09-27—Published

2003-10-21—Filed