Analyzing porosity of compacted bentonite via through diffusion method

被引：2

作者：

Feng, Zhengye ^{[1
]}

Tian, Junlei ^{[1
]}

Shi, Xiaoqiong ^{[1
]}

Wang, Chao ^{[1
]}

Wu, Tao ^{[1
]}

机构：

[1] Huzhou Univ, Dept Engn, Huzhou 313000, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 03期

关键词：

Effective diffusion coefficient; Diffuse double-layer; Bentonite; Multi-porosity model; Through-diffusion experiment; RE(VII) DIFFUSION; TRACER DIFFUSION; ANION-EXCLUSION; ADSORPTION; POREWATER; SE(IV); HTO; MONTMORILLONITE; COEFFICIENTS; CL-36(-);

D O I：

10.1007/s10967-024-09368-y

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The diffusion behavior of ReO4- (as a surrogate for 99TcO4-) and HSeO3- (as a surrogate for 79HSeO3-) in compacted Wyoming bentonite was investigated. A through-diffusion experiment was conducted to measure the effective diffusion coefficient and the accessible porosity at high salinity. Two multi-porosity models (MP1 and MP2) were employed to analyze the effect of compaction on the accessible porosity, the diffuse double-layer porosity, and the interlayer porosity. The diffuse double-layer porosity increased with increasing the external surface area.

引用

页码：1185 / 1193

页数：9

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