METHOD FOR RECOVERING RADIOACTIVE SLUDGE AND BOTTOM DEPOSITS

METHOD FOR RECOVERING RADIOACTIVE SLUDGE AND BOTTOM DEPOSITS

FIELD: immobilization of heterogeneous radioactive wastes. ^ SUBSTANCE: proposed method includes production of dehydrated radioactive sediment and filtrate on filtering centrifuge; heating of dehydrated radioactive sediment at 500 - 600 °C; crushing of products of heating into fragments measuring ma...

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Bibliographische Detailangaben
Hauptverfasser: PRILEPO JU.P, BARINOV A.S, LIFANOV F.A, KRASNIKOV P.V, DMITRIEV S.A, VARLAKOV A.P, KARLIN S.V, REZNIK A.A
Format: Patent
Sprache:eng ; rus
Schlagworte:
DECONTAMINATION ARRANGEMENTS THEREFOR
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:FIELD: immobilization of heterogeneous radioactive wastes. ^ SUBSTANCE: proposed method includes production of dehydrated radioactive sediment and filtrate on filtering centrifuge; heating of dehydrated radioactive sediment at 500 - 600 °C; crushing of products of heating into fragments measuring maximum 30 mm; case-hardening of crushed fragments with high-penetration cement solution which is, essentially, mixture of cement having specific surfaced area of minimum 8000 cm2/g and liquid phase at liquid phase-to-cement mass proportion of 0.6 - 1.4; for the final procedure mixture obtained is cooled down. ^ EFFECT: reduced amount of radioactive wastes, enhanced radiation safety, and reduced power requirement. ^ 2 cl, 1 tbl, 2 ex