Natural Clay Soils as Materials for Creating Engineering Safety Barriers for Radioacive Waste Disposal

— 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 C...

Full description

Saved in:
Bibliographic Details
Published inMoscow University geology bulletin Vol. 78; no. 5; pp. 697 - 705
Main Authors Kuleshova, M. L., Shimko, T. G., Danchenko, N. N., Avilina, I. V., Stepanova, N. Yu, Sergeev, V. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2023
Springer Nature B.V
Subjects
Clay
Earth and Environmental Science
Earth Sciences
Effective porosity
Geology
Porosity
Radioactive waste disposal
Radioactive wastes
Safety
Safety barriers
Safety engineering
Soil
Waste disposal
engineering safety barrier
sorption
maximum allowable operating time of a safety barrier
radionuclide
Online AccessGet full text

Cover

More Information
Summary:— 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.
ISSN:0145-8752
1934-8436
DOI:10.3103/S014587522305006X