The Sorption of Radionuclides on Clay Minerals—the Components of Engineering Safety Barriers
Anna Semenkova, O. A. Ilina, V. V. Krupskaya, Sergey Zakusin, O. V. Dorzhieva, B. V. Pokidko, Anna Yu. Romanchuk, Stepan N. Kalmykov
Abstract
The sorption properties of various clay minerals and materials based on them in relation to Cs(I), Sr(II), U(VI), Eu(III), and Pu(IV,V,VI) are compared. To determine the mineral composition, all the samples are studied by X-ray diffraction and X-ray fluorescence, the values of the specific surface are determined, and sorption experiments are carried out. It is shown that the high concentration of swelling clay minerals (montmorillonite, mixed-layer clay minerals) in the barrier material will contribute to its high sorption capacity in relation to the majority of the studied radionuclides.
Topics & Concepts
ChemistrySorptionClay mineralsRadionuclideEnvironmental chemistryChemical engineeringMineralogyAdsorptionOrganic chemistryEngineeringQuantum mechanicsPhysicsRadioactive element chemistry and processingGraphite, nuclear technology, radiation studiesChemical Synthesis and Characterization