DEVICE AND METHOD FOR PACKAGING NUCLEAR WASTE

摘要

Device (1) for packaging nuclear waste, comprising a concrete container (3) the internal wall of which delimits a cavity in which a metal vessel (2) is housed, the device being characterized in that it further comprises a receptacle (4) made of a thermoplastic polymer of spherolitic structure, placed inside the metal vessel (2) and intended to contain the waste. A device such as this ensures optimal containment while at the same time preserving a structural integrity and a mechanical strength over a period of at least one hundred years, this notably being the case in spite of the presence of chemically aggressive species. The invention also relates to a method of packaging nuclear waste using the device (1).