Migration study of uranium in Beishan granite by the continuous column method-Reference-Cited by-同舟云学术

Migration study of uranium in Beishan granite by the continuous column method

Published:2024-06-05 Issue: Volume: Page:
ISSN:0033-8230
Container-title:Radiochimica Acta
language:en
Short-container-title:

Author:

Gong Siyi¹,Zheng Jinguang¹,Yang Xin¹,Ma Yan¹,Tong Zhenfeng¹,Chen Tao¹

Affiliation:

1. School of Nuclear Science and Engineering , North China Electric Power University , Beijing 102206 , China

Abstract

Abstract Radionuclide migration is an essential process in the performance and safety assessments of radioactive waste repository. This study investigates uranium migration in Beishan granite using the continuous column method, focusing on the effects of flow rate, eluent pH, and carbonate. Experimental parameters were used to perform COMSOL simulations of the migration process. The findings reveal that mechanical dispersion plays a predominant role in uranium migration in the granite column. Notably, the impact of adsorption on migration appears to be limited, likely due to the brief contact time in the experimental setup. The study successfully demonstrates the capability of COMSOL in simulating radionuclide migration, offering significant insights for the performance and safety assessments of repository.

Funder

National Natural Science Foundation of China

Fundamental Research Funds for the Central Universities

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/ract-2024-0281/pdf

Reference50 articles.

1. Gavrilescu, M.; Pavel, L. V.; Cretescu, I. Characterization and Remediation of Soils Contaminated with Uranium. J. Hazard. Mater. 2009, 163, 475–510. https://doi.org/10.1016/j.jhazmat.2008.07.103.

2. Wang, J.; Chen, L.; Su, R.; Zhao, X. The Beishan Underground Research Laboratory for Geological Disposal of High-Level Radioactive Waste in China: Planning, Site Selection, Site Characterization and In Situ Tests. J. Rock. Mech. Geotech. Eng. 2018, 10, 411–435. https://doi.org/10.1016/j.jrmge.2018.03.002.

3. Chen, Z. Y.; Wang, S. Y.; Hou, H. J.; Chen, K.; Gao, P. Y.; Zhang, Z.; Jin, Q.; Duoqiang Pan, D. Q.; Guo, Z. J.; Wu, W. S. China’s Progress in Radionuclide Migration Study over the Past Decade (2010–2021): Sorption, Transport and Radioactive Colloid. Chin. Chem. Lett. 2022, 33, 3405–3412. https://doi.org/10.1016/j.cclet.2022.02.054.

4. Chen, P.; Ma, Y.; Kang, M. L.; Shang, C. M.; Song, Y.; Xu, F. Q.; Wang, J.; Song, G.; Yang, Y. Q. The Redox Behavior of Uranium on Beishan Granite: Effect of Fe2+ and Fe3+ Content. J. Environ. Radioact. 2020, 217, 106208. https://doi.org/10.1016/j.jenvrad.2020.106208.

5. Palagyi, S.; Stamberg, K.; Vopalka, D. A Simplified Approach to Evaluation of Column Experiments as a Tool for Determination of Radionuclide Transport Parameters in Rock-Groundwater or Soil-Groundwater Systems. J. Radioanal. Nucl. Chem. 2015, 304, 945–954. https://doi.org/10.1007/s10967-014-3898-z.