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http://dx.doi.org/10.7733/jnfcwt-k.2013.11.3.253

Analysis of Siting Criteria of Overseas Geological Repository (II): Hydrogeology  

Jung, Haeryong (Korea Radioactive Waste Agency)
Kim, Hyun-Joo (Korea Radioactive Waste Agency)
Cheong, Jae-Yeol (Korea Radioactive Waste Agency)
Lee, Eun Yong (Korea Radioactive Waste Agency)
Yoon, Jeong Hyoun (Korea Radioactive Waste Agency)
Publication Information
Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) / v.11, no.3, 2013 , pp. 253-257 More about this Journal
Abstract
Geology, hydrogeology, and geochemistry are the main technical siting factors of a geological repository for spent nuclear fuels. This paper evaluated the siting criteria of overseas geological repository with related to hydrogeologic properties, such as hydraulic conductivity, partitioning coefficient, dispersion coefficient, boundary condition, and water age. Each country establishes the siting criteria based on its important geological backgrounds and information, and social environment. For example, Sweden and Finland that have decided a crystalline rock as a host rock of a geological repository show different siting criteria for hydraulic conductivity. In Sweden, it is preferable to avoid area where the hydraulic conductivity on a deposition hole scale (~30m) exceeds $10^{-8}m/s$, whereas Finland does not decide any criterion for the hydraulic conductivity because of limited data for it. In addition, partitioning coefficients should be less than 10-1 of average value in Swedish crystalline bedrock. However, the area where shows 100 times less than average partitioning coefficients of radionuclides in crystalline rock should be avoided in Sweden. In German, the partitioning coefficients for the majority of the long-term-relevant radionuclides should be greater than or equal to $0.001m^3/kg$. Therefore, it is strongly required to collect much and exact information for the hydrogeologic properties in order to set up the siting criteria.
Keywords
Geological disposal; Repository; Hydrogeology; Siting factors; Criteria;
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