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Safe handling and storage of high level radioactive waste

Journal Article · · Radioact. Waste Manage.; (United States)
OSTI ID:6992730
This is a condensed version of the proposals of the Swedish Nuclear Fuel Safety Project (KBS). It consists of two parts; safe final storage of vitrified waste, and safe final storage of spent nuclear fuel. In this report are proposals which are detailed and comprehensive to permit a safety evaluation. These proposals specify concretely in which form the waste or spent fuel is to be stored, how the storage facility is to be designed and how transportation is to be effected. For unreprocessed spent nuclear fuel, proposals indicate how and where an absolutely safe final storage can be effected. Various stages in the handling of the fuel on its way to final storage are fully described. Briefly summarized, the report stipulates that the high-level radioactive waste will be in the form of borosilicate glass cylinders containing 9% fission products. The cylinders will be surrounded by 10 cm of lead, which is further encased in a titanium canister. The canisters are placed in deposition holes drilled in the tunnel floor. The holes are backfilled with a sand-clay mixture. The fuel assemblies are dismantled and the rods are encased in copper containers with 20 cm thick walls. The cylindrical containers are deposited into holes drilled in the floor of a tunnel system. The spaces between the rock and copper canisters are filled with compacted bentonite clay.
OSTI ID:
6992730
Journal Information:
Radioact. Waste Manage.; (United States), Journal Name: Radioact. Waste Manage.; (United States) Vol. 1:1; ISSN RWMAD
Country of Publication:
United States
Language:
English