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2 233 204

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IPC

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Application

2003126211/15, 2003-08-28

(24)

Start date

2003-08-28

(22)

Actual filing date

2003-08-28

(45)

Published

2004-07-27

(72)

Inventor

Degtjarev V.V.Apkaneev A.V.Kuznetsov A.A.

(73)

Holder

Degtjarev Vladislav Vasil'EvichApkaneev Aleksandr Vasil'EvichKuznetsov Anatolij Aleksandrovich

SORPTION METHOD OF REMOVING CONTAMINATION FROM SAND Russian patent published in 2004 - IPC

Abstract RU 2233204 C1

FIELD: disposal of solid waste.

SUBSTANCE: sand is preliminary treated with a solvent and mixed with a sorbent. The gel-like sediment of the second stage of gelatinization is used as a sorbent, which is produced with treating peat with potassium hydroxide. In so doing, the liquid phase is separated and it is treated with an acid up to pH 4-6, producing gel-like sediment and above-sediment liquid of the second stage of gelatinization. The mixture of water with above-sediment liquid of the second stage of gelatinization mentioned above is used as a solvent. The sand is treated holding the solid/liquid ratio equal to 1:(1-2). Before mixing with the sorbent, sand is partially dehydrated.

EFFECT: improved salt disposal.

6 cl

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RU 2 233 204 C1

Authors

Degtjarev V.V.

Apkaneev A.V.

Kuznetsov A.A.

Dates

2004-07-27—Published

2003-08-28—Filed