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Determination of Diffusivities of Sorbing and Nonsorbing Species in Rocks

by Chung Kyun Park, Korea Atomic Energy Research Inst, Daejeon, Republic of Korea,
Kyong Won Han, Korea Atomic Energy Research Inst, Daejeon, Republic of Korea,
Hun Hwee Park, Korea Atomic Energy Research Inst, Daejeon, Republic of Korea,



Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1991

Abstract:

Through-diffusion experiments were performed for the sorbing and nonsorbing species in granites. Determining methods of diffusivities were discussed according to sorption properties of species. For the nonsorbing species, steady-state diffusion model was effective to determine the diffusivity. For the sorbing species, unsteady-state diffusion model was introduced and the effective diffusivities was determined.

Subject Headings: Diffusion (chemical) | Mathematical models | Rocks | Steady states | Sorption | Waste disposal | Safety

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