Low-level waste shallow land burial source term waste form leaching model development for the BLT computer code [electronic resource].
- Rockville, Md. : U.S. Nuclear Regulatory Commission, 1991. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: (15 pages) : digital, PDF file
- Additional Creators:
- Brookhaven National Laboratory, U.S. Nuclear Regulatory Commission, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- A numerical model for leaching from solidified waste forms into a partially saturated porous medium has been developed. This model treats the waste form using the method of finite differences and the solution in the porous medium as a well stirred fluid (i.e., a uniform concentration mixing bath). The model simultaneously considers three release mechanisms: surface rinse, diffusion release, and dissolution release. The model has been verified through comparison to analytical solutions and used to successfully reproduce experimentally measured releases in wet/dry cycle leach tests. The model has been incorporated into the BLT computer code and is an improvement over previous models in the code because it treats all three release mechanisms simultaneously, allows solution concentration buildup in the mixing bath to influence diffusive releases, and allows partitioning of the contaminant between the waste form and the contacting solution. 13 refs., 2 figs., 4 tabs.
- Published through SciTech Connect., 01/01/1991., "bnl-nureg-45733", " conf-910270--8", "DE91007560", Waste management '91, Tucson, AZ (USA), 24-28 Feb 1991., and Sullivan, T.M.; Suen, C.J.
- Funding Information:
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