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1 313 240

(13)

A3

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IPC

(21) (22)

Application

3976614/25, 1985-09-25

(22)

Actual filing date

1985-09-25

(45)

Published

1995-04-30

(72)

Inventor

Makarchuk T.F.Khitrov Ju.A.Kritskij V.G.Shmakov L.V.Eperin A.P.Kovalev S.M.

(73)

Holder

Leningradskaja Atomnaja Ehlektrostantsija Im.V.I.Lenina

METHOD OF LONG STORAGE OF DEPLETED NUCLEAR FUEL Russian patent published in 1995 - IPC

Abstract SU 1313240 A3

FIELD: nuclear technology. SUBSTANCE: invention deals with technology of long storage of depleted nuclear fuel of atomic power stations in water pond. Simultaneously with cleaning saturation of water of pond storing depleted nuclear fuel up to maximum solubility of the latter (15-18)·10-6m3/l is conducted. Mixing is performed by air bubbling for the course of 3-4 days with rate of 18-20 qu.m/h at the same time. System of air supply which relates to depth of water pond as (0.8-1.0):10 is installed in pond for storage of depleted nuclear fuel. Injection of air changes pH to acid region which improved solubility of corrosion products. Simultaneous mixing leads to decrease in concentration of radio nuclides in water of pond and to improved radiation condition. EFFECT: improved radiation condition thanks to decreased levels of radioactivity of water in pond and improved ecology. 2 cl, 1 dwg, 2 tbl

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SU 1 313 240 A3

Authors

Makarchuk T.F.

Khitrov Ju.A.

Kritskij V.G.

Shmakov L.V.

Eperin A.P.

Kovalev S.M.

Dates

1995-04-30—Published

1985-09-25—Filed

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