Peng Liu , Xiaoying Zhang , Mohamad Reza Soltanian , Paul Reimus , Ju Wang , Zhenxue Dai
{"title":"Colloidal facilitated radionuclide transport characterization in preferential flow paths","authors":"Peng Liu , Xiaoying Zhang , Mohamad Reza Soltanian , Paul Reimus , Ju Wang , Zhenxue Dai","doi":"10.1016/j.jclepro.2025.145711","DOIUrl":null,"url":null,"abstract":"<div><div>Safe disposal of radionuclides nuclear waste is a key issue for protecting the environment and human health in sustainable nuclear energy development. Currently, geological disposal has been widely regarded as the most effective method for long-term waste management. However, with the failure of repository barriers in a time scale of million years, the radionuclides are possible to release into the subsurface system and transport with groundwater. The process can be enhanced by preferential flow paths, particularly in the presence of colloids. Therefore, a comprehensive understanding of the collaborating effects of preferential flow and colloids is critical for ensuring reliable repository assessments. In this paper, the interactions mechanisms between radionuclides and colloids that delaying the transport of radionuclides are first summarized with corresponding mathematical descriptions. The advanced modeling techniques are then assessed by describing colloid-facilitated radionuclide transport with different conceptual framework under the effect of preferential flow. Meanwhile, the main factors that impacting the preferential flow on radionuclide transport are simultaneously discussed. Finally, this work identifies key challenges and outlines future research directions in addressing the complex processes influencing radionuclide transport. It provides valuable insights into identifying the control factors in complicated radionuclides transport in subsurface and further enhancing the safety assessment of radioactive waste repository.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"520 ","pages":"Article 145711"},"PeriodicalIF":9.7000,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Cleaner Production","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0959652625010613","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
Safe disposal of radionuclides nuclear waste is a key issue for protecting the environment and human health in sustainable nuclear energy development. Currently, geological disposal has been widely regarded as the most effective method for long-term waste management. However, with the failure of repository barriers in a time scale of million years, the radionuclides are possible to release into the subsurface system and transport with groundwater. The process can be enhanced by preferential flow paths, particularly in the presence of colloids. Therefore, a comprehensive understanding of the collaborating effects of preferential flow and colloids is critical for ensuring reliable repository assessments. In this paper, the interactions mechanisms between radionuclides and colloids that delaying the transport of radionuclides are first summarized with corresponding mathematical descriptions. The advanced modeling techniques are then assessed by describing colloid-facilitated radionuclide transport with different conceptual framework under the effect of preferential flow. Meanwhile, the main factors that impacting the preferential flow on radionuclide transport are simultaneously discussed. Finally, this work identifies key challenges and outlines future research directions in addressing the complex processes influencing radionuclide transport. It provides valuable insights into identifying the control factors in complicated radionuclides transport in subsurface and further enhancing the safety assessment of radioactive waste repository.
期刊介绍:
The Journal of Cleaner Production is an international, transdisciplinary journal that addresses and discusses theoretical and practical Cleaner Production, Environmental, and Sustainability issues. It aims to help societies become more sustainable by focusing on the concept of 'Cleaner Production', which aims at preventing waste production and increasing efficiencies in energy, water, resources, and human capital use. The journal serves as a platform for corporations, governments, education institutions, regions, and societies to engage in discussions and research related to Cleaner Production, environmental, and sustainability practices.