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http://dx.doi.org/10.7733/jnfcwt.2021.19.1.113

A Study About Radionuclides Migration Behavior in Terms of Solubility at Gyeongju Low- and Intermediate-Level Radioactive Waste (LILW) Repository  

Park, Sang June (Pusan National University)
Byon, Jihyang (Pusan National University)
Lee, Jun-Yeop (Pusan National University)
Ahn, Seokyoung (Pusan National University)
Publication Information
Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) / v.19, no.1, 2021 , pp. 113-121 More about this Journal
Abstract
A safety assessment of radioactive waste repositories is a mandatory requirement process because there are possible radiological hazards owing to radionuclide migration from radioactive waste to the biosphere. For a reliable safety assessment, it is important to establish a parameter database that reflects the site-specific characteristics of the disposal facility and repository site. From this perspective, solubility, a major geochemical parameter, has been chosen as an important parameter for modeling the migration behavior of radionuclides. The solubilities were derived for Am, Ni, Tc, and U, which were major radionuclides in this study, and on-site groundwater data reflecting the operational conditions of the Gyeongju low and intermediate level radioactive waste (LILW) repository were applied to reflect the site-specific characteristics. The radiation dose was derived by applying the solubility and radionuclide inventory data to the RESRAD-OFFSITE code, and sensitivity analysis of the dose according to the solubility variation was performed. As a result, owing to the low amount of radionuclide inventory, the dose variation was insignificant. The derived solubility can be used as the main input data for the safety assessment of the Gyeongju LILW repository in the future.
Keywords
Radioactive waste disposal facility; Safety assessment; Geochemical parameter; Solubility;
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1 H. Lee, J. Seo, Y. Lee, W. Jung, and W. Sung, "Regional CO2 Solubility Trapping Potential of a Deep Saline Aquifer in Pohang Basin, Korea", Geosci. J., 20(4), 561-568 (2016).   DOI
2 S.C. Han, "Interdependent Safety Assessment of Integrated Low- and Intermediate Radioactive Waste Disposal System in the Republic of Korea", Master Thesis, KAIST (2015).
3 M. Baik, S. Kim, J. Lee, S. Lee, G. Kim, and S. Yun, "Sorption of 14C, 99Tc, 137Cs, 90Sr, 63Ni, and 241Am onto a Rock and a Fracture-Filling Material from the Wolsong Low-and Intermediate-Level Radioactive Waste Repository, Gyeongju, Korea", J. Radioanal. Nucl. Chem., 283(2), 337-345 (2010).   DOI
4 J. Yoon and J. Ahn, "A Systems Assessment for the Korean Advanced Nuclear Fuel Cycle Concept from the Perspective of Radiological Impact", Nucl. Eng. Technol., 42(1), 17-36 (2010).   DOI
5 B.W. Cho and C.O. Choo, "Geochemical Behavior of Uranium and Radon in Groundwater of Jurassic Granite Area, Icheon, Middle Korea", Water, 11(6), 1278 (2019).   DOI
6 S.S. Kim, M.H. Baik, and K.C. Kang, "Solubility of Neptunium Oxide in the KURT (KAERI Underground Research Tunnel) Groundwater", J. Radioanal. Nucl. Chem., 280(3), 577-583 (2009).   DOI
7 H. Lee, J. Seo, Y. Lee, W. Jung, and W. Sung, "Regional CO2 Solubility Trapping Potential of a Deep Saline Aquifer in Pohang basin, Korea", Geosci. J., 20(4), 561-568 (2016).   DOI
8 J.S. Yoon, H.W. Jung, M.N. Kim, and E.S. Park, "Diffusion Coefficient and Equilibrium Solubility of Water Molecules in Biodegradable Polymers", J. Appl. Polym. Sci., 77(8), 1716-1722 (2000).   DOI
9 D.L. Parkhurst and C.A.L. Appelo. Description of Input and Examples for PHREEQC Version 3-A Computer Program for Speciation, Batch-Reaction, One-Dimensional Transport, and Inverse Geochemical Calculations, U.S. Geological Survey Open-File Report, 1-497, 6-A43 (2013).
10 Y. Jo, J.Y. Lee, and J.I. Yun, "Adsorption of Uranyl Tricarbonate and Calcium Uranyl Carbonate onto γ-alumina", Appl. Geochemistry, 94, 28-34 (2018).   DOI
11 I. Grenthe, H. Wanner, and E. Osthols. TDB-2: Guidelines for the Extrapolation to zero Ionic Strength, Nuclear Energy Agency in Organization for Economic Co-operation and Developement Report 1-103, TDB-2 (2000).
12 A. Kitamura. Update of JAEA-TDB: Update of Thermodynamic Data for Zirconium and Those for Isosaccahrinate, Tentative Selection of Thermodynamic Data for Ternary M2+-UO22+-CO32- System and Integration with JAEA's Thermodynamic Database for Geochemical Calculations, Japan Atomic Energy Agency Research Report, 1-103, JAEA-Data/Code 2018-018 (2019).
13 E. Giffaut, M. Grive, P. Blanc, P. Vieillard, E. Colas, H. Gailhanou, S. Gaboreau, N. Marty, B. Made, and L. Duro, "Andra Thermodynamic Database for Performance Assessment: ThermoChimie", Appl. Geochemistry, 49, 225-236 (2014).   DOI
14 W. Hummel, U. Berner, E. Curti, F. Pearson, and T. Thoenen, "Nagra/PSI Chemical Thermodynamic Data Base 01/01", Radiochim Acta, 90(9-11), 805-813 (2002).   DOI
15 C.W. Davies and T. Shedlovsky, "Ion Association", J. Electrochem. Soc., 111(3), 85C (1964).
16 C. Yu, E. Gnanapragasam, J.J. Cheng, D. Lepoire, S. Kamboj, and C. Wang. User's Manual for RESRADOFFSITE Code Version 4, Argonne National Laboratory Report, 1-544, ANL/EVS/TM-19/2 (2020).
17 L. Ciavatta, "The Specific Interaction Theory in Evaluating Ionic Equilibria", Ann. Chim., 70, 551 (1980).
18 K.S. Pitzer, "Thermodynamics of Electrolytes. I. Theoretical Basis and General Equations", J. Phys. Chem. C, 77(2), 268-277 (1973).   DOI
19 P. Debye and E. Huckel, "De la Theorie des Electrolytes. I. Abaissement du Point de Congelation et Phenomenes Associes", Phys. Z., 24(9), 185-206 (1923).
20 S.J. Park, J. Byon, M.C. Lee, and S. Ahn, "Derivation of Preliminary DCGL for Kori Unit 1 Using RESRAD-OFFSITE and Comparison with RESRAD-ONSITE", Ann. Nucl. Energy, 151, 107954 (2021).   DOI
21 S.J. Park, J. Byon, D.H. Ban, S. Lee, W. Sohn, and S. Ahn, "Derivation of Preliminary Derived Concentration Guideline Level (DCGL) by Reuse Scenario for Kori Unit 1 Using RESRAD-BUILD", Nucl. Eng. Technol., 52(6), 1231-1242 (2020).   DOI
22 J. Byon, S. Park, and S. Ahn, "Derivation of Preliminary Derived Concentration Guideline Levels for Surface Soil at Kori Unit 1 by RESRAD Probabilistic Analysis", Nucl. Eng. Technol., 50(8), 1289-1297 (2018).   DOI
23 J. Byon, S. Park, and S. Ahn, "Study on the Soil Evaluation Methodology of on and Offsite Kori Unit 1", Ann. Nucl. Energy, 144, 107497 (2020).   DOI
24 J. Byon, S. Park, and S. Ahn, "Preliminary Surface Soil Area Factor for Elevated Residual Radioactivity of Kori Unit 1 Considering Adjacent Unit 2", Ann. Nucl. Energy, 135, 106958 (2020).   DOI