Nuclear Physics and Atomic Energy


Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English, Russian
  Periodicity: 4 times per year

  Open access peer reviewed journal


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Nucl. Phys. At. Energy 2017, volume 18, issue 4, pages 382-389.
Section: Radiobiology and Radioecology.
Received: 19.10.2017; Accepted: 28.12.2017; Published online: 20.02.2018.
PDF Full text (en)
https://doi.org/10.15407/jnpae2017.04.382

Groundwater monitoring and modelling of the Vector site for near-surface radioactive waste disposal in the Chornobyl exclusion zone


D. Bugai1,*, A. Skalskyy1, K. Haneke2, S. Thierfeldt2, O. Nitzsche2, A. Tretyak3, Yu. Kubko1

1 Institute of Geological Sciences, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2 Brenk Systemplanung GmbH, Aachen, Germany
3 SSE Central Enterprise for Radioactive Waste Management, Chornobyl, Ukraine


*Corresponding author. E-mail address: dmitri.bugai@igs-nas.org.ua

Abstract: Results of purposeful groundwater monitoring and modelling studies are presented, which were carried out in order to better understand groundwater flow patterns from the Vector site for near-surface radioactive waste disposal and storage in the Chornobyl exclusion zone towards river network. Both data of observations at local-scale monitoring well network at Vector site carried out in 2015 - 2016 and modelling analyses using the regional groundwater flow model of Chornobyl exclusion zone suggest that the groundwater discharge contour for water originating from Vector site is Sakhan River, which is the tributary to Pripyat River. The respective groundwater travel time is estimated at 210 - 340 years. The travel times in subsurface for 90Sr, 137Cs, and transuranium radionuclides (Pu isotopes, 241Am) are estimated respectively at thousands, tenths of thousands, hundreds of thousands million of years. These results, as well as presented data of analyses of lithological properties of the geological deposits of the unsaturated zone at Vector site, provide evidence for good protection of surface water resources from radioactivity sources (e.g., radioactive wastes) to be disposed in the near-sursface facilities at Vector site.

Keywords: Chornobyl exclusion zone, radioactive waste management, groundwater modelling, risk assessment.

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