干旱区生态环境知识资源中心(Arid): A case study on the soil-water characteristics of the vadose zone and the migration of intermediate-level nuclides in a planned spent-fuel reprocessing plant site

Arid

DOI	10.1016/j.jclepro.2020.124743
	A case study on the soil-water characteristics of the vadose zone and the migration of intermediate-level nuclides in a planned spent-fuel reprocessing plant site
	Zhang, Yu; Zhang, Yanjun; Wang, Xuhong; Hu, Jihua; Zhang, Xue; Zhang, Xin; Ma, Yongjie; Zhang, Peng
通讯作者	Zhang, YJ (corresponding author), Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China.
来源期刊	JOURNAL OF CLEANER PRODUCTION
ISSN	0959-6526
EISSN	1879-1786
出版年	2021
卷号	284
英文摘要	A flat arid unmanned Gobi in northwest Gansu, China, has been recognized as a good location for a planned spent-fuel reprocessing plant site. To better assess its applicability and safety as a proposed site, it is important to understand the composition and characteristics of the local vadose zone. Laboratory tests were carried out to analyze the basic properties of the soil in the unsaturated layer, such as particle size, structure, chemical composition and mineralogical characteristics. The permeability coefficients at different depths were measured by three methods, including the single ring, double ring, and inverse auger methods. Four groups of probes were buried at depths of 0.2-4 m in the vadose zone to detect changes in matrix suction with water content in the dehydration state and to determine the field soilwater characteristics curve. Based on the measured hydrological and geological parameters, the migration of intermediate-level nuclides H-3, Co-60, and Cs-137 from the vadose zone into groundwater was simulated by HYDRUS-1D under different rainfall intensities. The simulation results showed that the vadose zone in the study area has a strong retention effect, in which the Co-60 and Cs-137 nuclides were retained in the vadose zone during the 1000-year simulation period. The radioactivity and distribution coefficients of the nuclides were the main factors affecting the time to reach the pollution standard at the groundwater level on a short time scale. Rainfall significantly increased nuclide migration speed on a large time scale. Finally, two engineering protection measures derived from weakening the driving force and increasing the migration path were proposed and were effective in a numerical simulation. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Vadose zone Soil-water characteristic curve Nuclides migration Engineering measures
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000608902800013
WOS关键词	RADIONUCLIDE TRANSPORT ; FLOW
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347992
作者单位	[Zhang, Yu; Zhang, Yanjun; Zhang, Xin; Ma, Yongjie; Zhang, Peng] Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China; [Zhang, Yanjun] Jilin Univ, Key Lab Groundwater Resource & Environm, Minist Educ, Changchun 130026, Peoples R China; [Wang, Xuhong; Hu, Jihua; Zhang, Xue] China Nucl Power Engn Co Ltd, Beijing 100840, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yu,Zhang, Yanjun,Wang, Xuhong,et al. A case study on the soil-water characteristics of the vadose zone and the migration of intermediate-level nuclides in a planned spent-fuel reprocessing plant site[J],2021,284.
APA	Zhang, Yu.,Zhang, Yanjun.,Wang, Xuhong.,Hu, Jihua.,Zhang, Xue.,...&Zhang, Peng.(2021).A case study on the soil-water characteristics of the vadose zone and the migration of intermediate-level nuclides in a planned spent-fuel reprocessing plant site.JOURNAL OF CLEANER PRODUCTION,284.
MLA	Zhang, Yu,et al."A case study on the soil-water characteristics of the vadose zone and the migration of intermediate-level nuclides in a planned spent-fuel reprocessing plant site".JOURNAL OF CLEANER PRODUCTION 284(2021).