M. L. Kuleshova, T. G. Shimko, N. N. Danchenko, I. V. Avilina, N. Yu. Stepanova, V. I. Sergeev
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引用次数: 0
摘要
摘要--两种天然粘土被认为是建造放射性废物处置安全屏障的有前途的材料。对影响粘土吸收特性的成分指标进行了分析。在柱状实验中研究了土壤对铯、锶、铀、钍、钡（镭的类似物）、钕和镝（Am-241 和 Cm-244 的类似物）的吸收能力，这些物质可能存在于危害等级为 III 和 IV 的放射性废物中。实验得出的土壤迁移参数（有效孔隙度、有效扩散系数和吸附能力）被用于预测性数学模型，以比较评估由所研究材料制成的安全屏障的有效性；并估计了将其用于工程安全屏障的可能性。
Natural Clay Soils as Materials for Creating Engineering Safety Barriers for Radioacive Waste Disposal
Abstract—
Two natural clay soils are considered as promising materials for creating safety barriers for radioactive waste disposal. Composition indicators that affect the absorbing properties of clays have been analyzed. The absorption capacity of the soils is studied in column experiments with respect to Cs, Sr, U, Th, Ba (analogue of Ra), and Nd and Dy (analogues of Am-241 and Cm-244), which can be present in radioactive waste of hazard classes III and IV. The experimentally derived migration parameters (effective porosity, effective dispersion coefficient, and sorption capacity) of soils are used in predictive mathematical modeling for the comparative assessment of the effectiveness of safety barriers made of the materials under study; the possibility of using them for engineering safety barriers is estimated.
期刊介绍：
Moscow University Geology Bulletin is the journal that mainly publishes scientific articles, short reports of graduate students, and reviews. Publications made by the members of the Faculty of Geology of the Moscow State University and their collaborators are published. Publications encompass all branches of geology.
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