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AbstractAbstract
[en] The main characteristics concerning the continuous vitrification process for the confinement of fission product solutions operated at AVM are summarized. The general principle of a vitrification plant is described. The AVM plant efficiency as also its conception of consumable parts interchangeability are satisfying. The evolution of the process and its application developped in two ways: a more spaced installation conception and the improvement of the weak points remarked at AVM, as also the capacity of output. Two industrial units are designed at La Hague. The future evolution of the process aims at manufacturing glass at higher temperatures about 1400 degrees Celsius. Some problems remain to be resolved for the using of ceramic melters associated with a calcination unit. The studies provide for a satisfying behaviour for the material to long-term. The risks of damage by crystallisation, leaching and effects of alpha emission are analysed
[fr]
Les principales caracteristiques concernant le procede de vitrification continu pour le confinement des solutions de produits de fission exploite a AVM sont resumees. On expose le principe general d'une installation de vitrification. Le fonctionnement de l'installation AVM, ainsi que sa conception des principes d'interchangeabilite des parties consommables sont satisfaisantes. L'evolution du procede et son application se sont developpees dans deux directions: une conception d'installation plus aeree et l'amelioration des points faibles notes a AVM, ainsi que de la capacite de production. Deux ateliers sont prevus a La Hague. L'evolution future du procede a pour objectif l'elaboration de verre a des temperatures plus importantes, voisines de 1400 degrees Celsius. Quelques problemes restent a resoudre pour l'installation de fours ceramiques associes a une intallation de calcination. Les etudes laissent prevoir un comportement satisfaisant du materiau dans le temps. Les risques de degradation par cristallisation, attaque de l'eau et action cumulee des emetteurs alpha sont analysesOriginal Title
Point actuel sur la vitrification de produits de fission
Primary Subject
Source
May 1982; 18 p; French Nuclear Energy Society: meeting on nuclear waste; Paris (France); 13 May 1982
Record Type
Report
Literature Type
Conference
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