PROCEDE D'IMMOBILISATION DE RESINES ECHANGEUSES D'IONS PROVENANT DES CIRCUITS SECONDAIRES DES REACTEURS NUCLEAIRES A EAU PRESSURISEE ET DES REACTEURS GRAPHITE-GAZ

PROCEDE D'IMMOBILISATION DE RESINES ECHANGEUSES D'IONS PROVENANT DES CIRCUITS SECONDAIRES DES REACTEURS NUCLEAIRES A EAU PRESSURISEE ET DES REACTEURS GRAPHITE-GAZ

The present invention relates to a process for the immobilization of ion exchange resins originating from the secondary circuits of pressurized water nuclear reactors and gas-cooled graphite-moderated reactors, wherein the ion exchange resins are saturated with a base, preferably sodium hydroxide, u...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MARIE-FRANCOISE CHAMPEAUD EPOUSE MAGNIN, GUY MAGNIN, VERONIQUE AUBERT, CLAUDE JAOUEN
Format: Patent
Sprache:fre
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:The present invention relates to a process for the immobilization of ion exchange resins originating from the secondary circuits of pressurized water nuclear reactors and gas-cooled graphite-moderated reactors, wherein the ion exchange resins are saturated with a base, preferably sodium hydroxide, under conditions such that the pH of the medium is greater than about 9 and such as to favor the release of ammonia, after which the said resins are concreted with a hydraulic binder.