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2 231 838

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IPC

(21) (22)

Application

2002128583/06, 2002-10-25

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Start date

2002-10-25

(22)

Actual filing date

2002-10-25

(45)

Published

2004-06-27

(72)

Inventor

Goncharov B.V.Doil'Nitsyn V.A.Jankevich M.I.Kvitko K.V.Surzhko L.F.Khadeeva V.V.Utin A.V.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj UniversitetSankt-Peterburgskij Gosudarstvennyj Tekhnologicheskij InstitutZakrytoe Aktsionernoe Obshchestvo

FLOATING COMPOSITE FOR TREATING AQUEOUS MEDIA TO REMOVE CESIUM RADIONUCLIDES AND/OR PETROLEUM DERIVATIVES Russian patent published in 2004 - IPC

Abstract RU 2231838 C1

FIELD: water treatment.

SUBSTANCE: invention, in particular, relates to treatment of liquid radioactive wastes and aqueous media polluted by petroleum derivatives. Floating composite contains up to 3% of inorganic cesium-selective nickel ferrocyanide sorbent, polymer matrix made from porous fibrous polyethylene and present in the form of structured and unstructured elements, and oil-oxidizing microflora immobilized in polymer matrix and being present in concentration 10⁵-10⁷ cell/g, said cesium-selective sorbent being dispersed in the bulk of polymer matrix.

EFFECT: enabled cleaning various aqueous media without limitation by content of petroleum derivatives and cesium radionuclides.

6 cl, 2 tbl, 4 ex

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RU 2 231 838 C1

Authors

Goncharov B.V.

Doil'Nitsyn V.A.

Jankevich M.I.

Kvitko K.V.

Surzhko L.F.

Khadeeva V.V.

Utin A.V.

Dates

2004-06-27—Published

2002-10-25—Filed