Technical Assistance for Heel Retrieval from INEEL High-Level Tanks
(Tech ID 2995)

At Idaho National Engineering and Environmental Laboratory (INEEL), a number of processes currently being considered for treatment of high-level waste (HLW) involve handling of slurries. Processes include (1) removal of sludges in tank farm heels, (2) transport and storage of undissolved solids from filtration of radioactive liquids including existing sodium bearing liquid wastes and solutions from dissolution of calcined waste prior to radionuclide separations, and (3) sluicing of resin materials into and out of ion exchange columns. Systems will be needed to pump, convey, store, and retrieve these radioactive slurries. Performance data for such systems are needed in order to select and size appropriate equipment to handle the slurries that are likely to be removed during waste processing. Oak Ridge National Laboratory (ORNL) shall provide technical assistance to INEEL based upon experience at the Gunite and Associated Tanks. In particular, ORNL shall review the results of INEEL cold testing and assist in the identification of retrieval tool options.

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