Abstract
The Idaho Chemical Processing Plant (ICPP), located at the Idaho National Engineering and Environmental Laboratory (INEEL), formerly reprocessed spent nuclear fuel to recover fissionable uranium. The radioactive raffinates from the solvent extraction uranium recovery processes were converted to granular solids (calcine) in a high temperature fluidized bed. A secondary liquid waste stream was generated during the course of reprocessing, primarily from equipment decontamination between campaigns and solvent wash activities. This acidic tank waste cannot be directly calcined due to the high sodium content and has historically been blended with reprocessing raffinates or non-radioactive aluminum nitrate prior to calcination. Fuel reprocessing activities are no longer being performed at the ICPP, thereby eliminating the option of waste blending to deplete the waste inventory. Currently, approximately 5.7 million liters of high-activity waste are temporarily stored at the ICPP in large underground stainless-steel tanks.
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© 1998 Springer Science+Business Media New York
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Law, J.D., Brewer, K.N., Todd, T.A., Olson, L.G. (1998). Demonstration of the TRUEX Process for the Treatment of Actual High-Activity Tank Waste at the INEEL Using Centrifugal Contractors. In: Schulz, W.W., Lombardo, N.J. (eds) Science and Technology for Disposal of Radioactive Tank Wastes. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1543-6_19
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DOI: https://doi.org/10.1007/978-1-4899-1543-6_19
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