DECONTAMINATION METHOD USING SMALL AMOUNT OF CHEMICAL AGENTS

FIELD: nuclear power engineering; decontaminating inner surfaces of nuclear power plant circuits. SUBSTANCE: method includes treatment of power-generating equipment with 45-100 mg/l solution of nitrous acid at temperature of 80- 100 C for 5-17 h. Nitrous acid is produced directly in circuit by passi...

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Bibliographische Detailangaben
Hauptverfasser:	GUSAROV V.I, DOIL'NITSYN V.A, OBLOGIN A.V, PROZOROV V.V, BUKREEV A.N, LYSENKO A.A, SLEPOKON' JU.I
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: nuclear power engineering; decontaminating inner surfaces of nuclear power plant circuits. SUBSTANCE: method includes treatment of power-generating equipment with 45-100 mg/l solution of nitrous acid at temperature of 80- 100 C for 5-17 h. Nitrous acid is produced directly in circuit by passing nitrous acid salt solution through ion-exchange resin or introducing nitric acid or its hydrolyzing salt in nitrous acid salt solution. EFFECT: enhanced decontamination efficiency, facilitated procedure. 2 cl, 3 tbl, 3 ex