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Conceptual design considerations for the storage of solidified high-level waste in canisters at a commercial fuel reprocessing plant

Description: Onsite storage of canisters of solidified high-level waste generated by the commercial fuel reprocessing plants (FRP) may be required prior to shipping these canisters to a Federal repository. The most likely storage concept is to hold the waste-filled canisters in water storage basins. In the Retrievable Surface Storage Facility conceptual design studies, air-cooled and water-cooled storage of solidified high-level wastes has been considered. The studies of water-cooled storage included design considerations, as part of the conceptual design of the canisters and water storage basins, that would apply also to the conceptual design of similar facilities at an FRP. These similar considerations include: types of corrosion likely to develop on canisters stored in water, conditions that promote stress corrosion cracking (SCC), prevention of SCC, routine basin water cleanup, cleanup of a grossly contaminated water basin, effluent discharge discussions, storage basin integrity, and designing for decommissioning. (auth)
Date: November 1, 1975
Creator: LaRiviere, J.R. & Moore, E.L.
Partner: UNT Libraries Government Documents Department

Program plan for comprehensive characterization of solidified high-level wastes

Description: An experimental plan is described for in-depth characterization of canistered solidified waste forms for the storage and disposal of high-level radioactive wastes. The plan is being considered for silicate glass forms at PNL. The basic aspects of the plan have general application and can be applied to other candidate waste forms as well. The plan is designed to define the behavior of waste canisters and their contents during anticipated handling, storage, and disposal regimes. Particular emphasis is placed on long-term thermal and radiation effects. A 10-year period is projected for complete characterization of any one basic type of waste form, e.g., silicate glass cast in metal canisters. A preponderance of the laboratory effort occurs in the first 5 years. It is assumed that shortly thereafter an operating solidification plant will be available, so that much of the second 5 years can be devoted to corroborative tests made on representative canisters of actual high-level waste. Manpower requirements are estimated at 65 scientist man-years during the first 5 years and 30 scientist man-years during the second 5 years. (auth)
Date: December 1, 1975
Creator: Mendel, J E
Partner: UNT Libraries Government Documents Department