Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 324, Issue 2, Pages 903-911Publisher
SPRINGER
DOI: 10.1007/s10967-020-07089-6
Keywords
Se(IV); Tamusu clay; Diffusion; High level waste disposal
Funding
- National Defense Science and Technology Foundation Project [JCKY2017401C005]
- Natural Science Foundation of China [201761002]
- Graduate Innovation Program [DHYC201912]
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For the first time in laboratory, diffusion parameters of Se(IV) in the clay of Chinese Tamusu region(TMS clay) against compacted density, ionic strength and pH value were obtained by capillary method. Diffusion process can be Simplified by using one-dimensional semi-infinite medium diffusion model. The results show a good similarity with the international literature and meet the internationally recognized range of 10(-9)-10(-12). This work will provide data support and theoretical references for the pre-selection of clay rock sites in China's high-level radioactive waste deep geological repository.
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