Diffusion and Leaching of Selected Radionuclides (Iodine-129, Technetium-99, and Uranium) Through Category 3 Waste Encasement Concrete and Soil Fill Material

Mattigod, Shas V ; Whyatt, Greg A ; Serne, R Jeffrey ; Schwab, Kristen E ; Wood, Marcus I

Pacific Northwest National Laboratory (U.S.)

关键词: Leaching;    Technetium 99;    Diffusion;    Uranium;    Ground Water;   

DOI  :  10.2172/789913
RP-ID  :  PNNL-13639
RP-ID  :  AC06-76RLO1830
RP-ID  :  789913

美国|英语

来源: UNT Digital Library

【 摘 要 】

An assessment of long-term performance of Category 3 waste-enclosing cement grouts requires data about the leachability/diffusion of radionuclide species (iodine-129, technetium-99, and uranium) when the waste forms come in contact with groundwater. Leachability data were collected by conducting dynamic (ANS-16.1) and static leach tests on radionuclide-containing cement specimens. The diffusivity of radionuclides in soil and concrete media was collected by conducting soil-soil and concrete-soil half-cell experiments.