Sorption and desorption of Sr onto a rough single fractured granite

被引：8
|
作者：
Zang, Jianzheng [1 ]
Wang, Jinlong [1 ]
Han, Xiaoyuan [1 ]
Yao, Haibo [1 ]
Fu, Baofeng [1 ]
Zhao, Jian [1 ]
Li, Bo [1 ]
Chen, Jie [1 ]
机构：
[1] Northwest Inst Nucl Technol, Xian 710024, Shaanxi, Peoples R China
来源：
JOURNAL OF CONTAMINANT HYDROLOGY | 2020年 / 228卷
关键词：
Sorption; Desorption; SR; Single fracture; Roughness angle; FLUID-FLOW; RADIONUCLIDE MIGRATION; CUBIC LAW; SURFACE; ROCK; ADSORPTION; TRANSPORT; MODEL;
D O I：
10.1016/j.jconhyd.2019.103558
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
To investigate the migration behavior of Sr (strontium) in granite, a rough-walled single fracture of granite was prepared with the self-built rock splitting apparatus. Surface roughness angle and hydraulic aperture of the fracture were measured by 3D laser scanning and fluid flow experiment, respectively. The sorption and desorption breakthrough experiments of Sr in the single fracture were conducted at different flow rates and initial concentrates of Sr, and the important transport parameters were derived by fitting the BTCs and DPCs. The results suggested that the sorption of Sr onto the fracture surface was a linear and reversible ion-exchange process, unaffected by the variation of flow rate and initial concentrate of Sr.
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页数：6
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