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2 117 343

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Application

97111224/25, 1997-07-01

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Actual filing date

1997-07-01

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Published

1998-08-10

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Inventor

Gribanenkov S.V.Shmakov L.V.Lebedev V.I.Tishkov V.M.Pankratov V.N.Olejnik M.S.

(73)

Holder

Gosudarstvennoe Predprijatie Atomnaja Ehlektrostantsija Im.V.I.Lenina"

METHOD FOR RECOVERY OF LIQUID RADIOACTIVE WASTES FROM NUCLEAR POWER STATIONS Russian patent published in 1998 - IPC

Abstract RU 2117343 C1

FIELD: recovery of radioactive wastes by solidifying them. SUBSTANCE: method involves mixing of liquid radioactive wastes with crushed granular blast-furnace slug, spent filter perlite of nuclear power station, and calcium mud of nuclear station vat concentrate alkalized to pH = 14.4-14.5 in mass proportion of 1.0:1.4 - 2.1:0.10- 0.20:0.15-0.25. Mixture is allowed to solidify for 28 days. Solidified products obtained contain 39-49% of radioactive materials while retaining their strength above 5 MPa and high water resistance. EFFECT: improved quality of solidified products. 1 tbl, 5 ex

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RU 2 117 343 C1

Authors

Gribanenkov S.V.

Shmakov L.V.

Lebedev V.I.

Tishkov V.M.

Pankratov V.N.

Olejnik M.S.

Dates

1998-08-10—Published

1997-07-01—Filed

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