Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field
Deep geologic disposal has been widely accepted as a strategy for long-term disposal of the high-level radioactive waste. It is principal to obtain the migration parameters of radionuclides in natural barrier, such as granite, of a high-level radioactive waste repository for safety assessment of the...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573324003784 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841545599648792576 |
|---|---|
| author | Xinyu Wang Xiaojie Li Yongmei Li Longcheng Liu Shuo Meng Chunguang Li Zhenzhong Liu Xiaodong Li Kaixuan Tan |
| author_facet | Xinyu Wang Xiaojie Li Yongmei Li Longcheng Liu Shuo Meng Chunguang Li Zhenzhong Liu Xiaodong Li Kaixuan Tan |
| author_sort | Xinyu Wang |
| collection | DOAJ |
| description | Deep geologic disposal has been widely accepted as a strategy for long-term disposal of the high-level radioactive waste. It is principal to obtain the migration parameters of radionuclides in natural barrier, such as granite, of a high-level radioactive waste repository for safety assessment of the repository. To quickly determine the diffusion and sorption properties of nuclides in intact granite, two tracers, I− and ReO4−, were tested with a modified electromigration device, by imposing a constant voltage over an intact Beishan granitic rock sample. The breakthrough curves of I− and ReO4− were obtained under condition of five different voltages. To interpret the electromigration experimental results with more confidence, an advection-dispersion model based on first-order adsorption kinetics was developed in this study. Data analysis of the breakthrough curves by this model suggest that the effective diffusion coefficients of I− and ReO4− in intact Beishan granodiorite rock are (6.81 ± 0.53) × 10−13 m2/s and (6.45 ± 0.07) × 10−13 m2/s, respectively. While the distribution coefficient of the two ions are (9.06 ± 1.13) × 10−7 m3/kg and (9.81 ± 0.13) × 10−7 m3/kg, respectively. This indicates that I− and ReO4− hardly adsorb in Beishan granodiorite rock. |
| format | Article |
| id | doaj-art-a422a00e731d4446bd65f7fb13ddbe67 |
| institution | Kabale University |
| issn | 1738-5733 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj-art-a422a00e731d4446bd65f7fb13ddbe672025-01-12T05:24:35ZengElsevierNuclear Engineering and Technology1738-57332025-01-01571103131Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric fieldXinyu Wang0Xiaojie Li1Yongmei Li2Longcheng Liu3Shuo Meng4Chunguang Li5Zhenzhong Liu6Xiaodong Li7Kaixuan Tan8School of Nuclear Science and Technology, University of South China, Hengyang, 421001, ChinaSchool of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, ChinaSchool of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, China; R&D and Modelling Center for Treatment and Disposal of Radioactive Waste, University of South China, Hengyang, 421001, China; Corresponding author. School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, China.School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China; R&D and Modelling Center for Treatment and Disposal of Radioactive Waste, University of South China, Hengyang, 421001, China; Beijing Research Institute of Chemical Engineering and Metallurgy, China National Nuclear Corporation, Beijing, 101149, China; Corresponding author. School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China.School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China; R&D and Modelling Center for Treatment and Disposal of Radioactive Waste, University of South China, Hengyang, 421001, ChinaSchool of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, China; R&D and Modelling Center for Treatment and Disposal of Radioactive Waste, University of South China, Hengyang, 421001, ChinaSchool of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, China; R&D and Modelling Center for Treatment and Disposal of Radioactive Waste, University of South China, Hengyang, 421001, ChinaDepartment of Chemistry–Radiochemistry, University of Helsinki, 00014, Helsinki, FinlandSchool of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, ChinaDeep geologic disposal has been widely accepted as a strategy for long-term disposal of the high-level radioactive waste. It is principal to obtain the migration parameters of radionuclides in natural barrier, such as granite, of a high-level radioactive waste repository for safety assessment of the repository. To quickly determine the diffusion and sorption properties of nuclides in intact granite, two tracers, I− and ReO4−, were tested with a modified electromigration device, by imposing a constant voltage over an intact Beishan granitic rock sample. The breakthrough curves of I− and ReO4− were obtained under condition of five different voltages. To interpret the electromigration experimental results with more confidence, an advection-dispersion model based on first-order adsorption kinetics was developed in this study. Data analysis of the breakthrough curves by this model suggest that the effective diffusion coefficients of I− and ReO4− in intact Beishan granodiorite rock are (6.81 ± 0.53) × 10−13 m2/s and (6.45 ± 0.07) × 10−13 m2/s, respectively. While the distribution coefficient of the two ions are (9.06 ± 1.13) × 10−7 m3/kg and (9.81 ± 0.13) × 10−7 m3/kg, respectively. This indicates that I− and ReO4− hardly adsorb in Beishan granodiorite rock.http://www.sciencedirect.com/science/article/pii/S1738573324003784ElectromigrationIntact granitic rockIodineRheniumFirst-order adsorption kineticsAdvection-dispersion model |
| spellingShingle | Xinyu Wang Xiaojie Li Yongmei Li Longcheng Liu Shuo Meng Chunguang Li Zhenzhong Liu Xiaodong Li Kaixuan Tan Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field Nuclear Engineering and Technology Electromigration Intact granitic rock Iodine Rhenium First-order adsorption kinetics Advection-dispersion model |
| title | Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field |
| title_full | Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field |
| title_fullStr | Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field |
| title_full_unstemmed | Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field |
| title_short | Rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field |
| title_sort | rapid determination of the migration parameters of nuclides in intact granite rock under the action of electric field |
| topic | Electromigration Intact granitic rock Iodine Rhenium First-order adsorption kinetics Advection-dispersion model |
| url | http://www.sciencedirect.com/science/article/pii/S1738573324003784 |
| work_keys_str_mv | AT xinyuwang rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT xiaojieli rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT yongmeili rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT longchengliu rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT shuomeng rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT chunguangli rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT zhenzhongliu rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT xiaodongli rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield AT kaixuantan rapiddeterminationofthemigrationparametersofnuclidesinintactgraniterockundertheactionofelectricfield |