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AbstractAbstract
[en] From 1962 to 1976, one of the laboratories called ''Cellule 4'', was equipped to produce large quantities of tritium. The decisions taken in June 1976 to redirect the activities of the Radioisotopes Department included the suspension of the tritium activities of ''Cellule 4'' at the Saclay Nuclear Research Center. From 1976 to 1981, many CEA departments contributed to the design and implementation of a packaging procedure for tritiated wastes resulting from the dismantling of ''Cellule 4''. A classification into three groups was adopted for this purpose. (1) Packaging in a welded stainless steel container. (2) Packaging in a reinforced concrete shell lined internally with a thick coat of epoxy resin charged with sand. (3) Packaging in a reinforced concrete shell lined internally with a thin coat of epoxy resin. The dismantling operations were carried out in three phases. (1) (2 1/2 months): the T activity remained unchanged during this period and waste selection was carried out. (2) (2 1/2 months): waste dismantling and packaging of groups (2) and (3) were carried out in this phase. Activity decayed rapidly. (3) (2 months): the work performed included the loosening and cutting of the general structures
[fr]
De 1962 a 1976 un des laboratoires, denomme ''cellule 4'', etait equipe pour la production d'importantes quantites de tritium. Les decisions de reorientation de l'activite du Departement des Radioelements prises en juin 1976 comportaient notamment l'arret au CEN/SACLAY des activites tritium de la cellule 4. De 1976 a 1981 plusieurs services du CEA ont contribue a l'elaboration et a la mise en pratique d'un mode de conditionnement des dechets trities resultant du demantelement de la cellule 4. Pour cela on a etabli un classement en 3 groupes: 1) conditionnement dans un conteneur en acier inoxydable soude, 2) conditionnement dans une coque en beton arme, revetue interieurement d'une couche epaisse de resine epoxyde chargee en sable, 3) conditionnement dans une coque en beton arme, revetue interieurement d'une couche mince de resine epoxyde. Le deroulement des operations de demantelement s'est effectue en 3 phases: 1) (duree 2,5 mois). Pendant cette periode, l'activite du T reste inchangee. On procede a la selection des dechets. 2) (duree 2,5 mois). Durant cette phase on a effectue les demontages et conditionnements des dechets des groupes 2 et 3. L'activite a decru rapidement. 3) (duree 2 mois). Les travaux executes comprennent le descellement et le decoupage des structures generalesOriginal Title
Conditionnement de dechets trities au ''laboratoires chauds''
Primary Subject
Secondary Subject
Source
Jun 1982; 27 p; 21. Euratom workshop on hot laboratories and remote handling; Mol (Belgium); 10 - 11 Jun 1982
Record Type
Report
Literature Type
Conference
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