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CONCLUSION

  • Research studies and the technologies that have been developed for managing high-level radioactive wastes produced in the regeneration of spent nuclear fuel using dry methods (pyroelectrochemical and gas fluoride technologies) indicate the feasibility of controlled storage of such wastes in simple hermetically sealed vessels for a prolonged period (decades).

  • Radioactive wastes created as a result of pyroelectrochemical regeneration may be placed fairly easily in glass or ceramic forms suitable for permanent burial.

  • A program of research work must be completed to determine the optimal form (for example, chemical composition, type of matrix) for solid high-level radioactive wastes from the standpoint of ensuring the safety of their burial in geological formations. This research is a vital element of the regeneration technologies being developed to facilitate the new closed fuel cycles.



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