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2 010 013

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IPC

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Application

5012187/26, 1991-08-02

(22)

Actual filing date

1991-08-02

(45)

Published

1994-03-30

(72)

Inventor

Popik V.P.Zamanskij V.Ja.Pavilajnen Ju.V.Trubitsyn M.B.Fedotov A.K.Bogdanov A.E.Sidorov A.P.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Institut Im.V.G.Khlopina"

METHOD OF ACID SEWAGE TREATMENT FROM HEAVY METAL IONS Russian patent published in 1994 - IPC

Abstract RU 2010013 C1

FIELD: sewage treatment. SUBSTANCE: method involves precipitation in alkaline phase, which is carried out by using of milk of lime up to pH 6.5-7 at the first stage following by treatment of suspension formed with sodium carbonate at pH 9-9.5. EFFECT: improved method of sewage treatment. 2 tbl

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RU 2 010 013 C1

Authors

Popik V.P.

Zamanskij V.Ja.

Pavilajnen Ju.V.

Trubitsyn M.B.

Fedotov A.K.

Bogdanov A.E.

Sidorov A.P.

Dates

1994-03-30—Published

1991-08-02—Filed

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