Preliminary modelling of radionuclide migration in the argillaceous sediments of the Sumer Formation (Northwestern Bulgaria)-Reference-Cited by-同舟云学术

Preliminary modelling of radionuclide migration in the argillaceous sediments of the Sumer Formation (Northwestern Bulgaria)

Published:2020-12 Issue:3 Volume:49 Page:13-18
ISSN:2535-1060
Container-title:Geologica Balcanica
language:en
Short-container-title:

Author:

Antonov Dimitar¹,Tsvetkova Madlena¹,Karastanev Doncho¹

Affiliation:

1. Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Abstract

In Bulgaria, from the preliminary analyses performed for site selection of deep geological disposal of high-level waste (HLW) and spent fuel (SF), it was concluded that the most promising host rocks are the argillaceous sediments of the Sumer Formation (Lower Cretaceous), situated in the Western Fore-Balkan Mts. The present paper aims to compare the transport of three major radionuclides from a hypothetical radioactive waste disposal facility, which incorporates an engineering barrier of bentonite into the argillaceous (marl) medium. The simulations were performed by using HYDRUS-1D computer programme. The results are used for a preliminary estimation of argillaceous sediments as a host rock for geological disposal of HLW.

Publisher

Geological Institute, Bulgarian Academy of Sciences

Subject

General Earth and Planetary Sciences

Reference27 articles.

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3. Environmental Protection Agency. 2004. Understanding Variation in Partition Coefficient, Kd, Values. Volume III: Review of Geochemistry and Available Kd Values for Americium, Arsenic, Curium, Iodine, Neptunium, Radium, and Technetium. EPA 402-R-04-002C, Washington DC, 188 pp.

4. Georgieva, M. 2016. Effective porosity and mineral composition of marl from the Sumer Formation. Bulgarian Geological Society, National Conference with International Participation “Geosciences 2016”, Abstracts, 147–148 (in Bulgarian, with English abstract).

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