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Modeling the Migration of 99Sr and 137Cs in the Subsurface from the Chernobyl NPP Unit-4 Shelter

Published online by Cambridge University Press:  03 September 2012

S. L. Kivva ,
O. B. Stelya  and
N. I. Proskura
S. L. Kivva
Affiliation:
EM Department, Institute of Mathematical Machines&System Problems, 42, Glushkova pr., Kiev, 252187, Ukraine, [email protected]
O. B. Stelya
Affiliation:
Kiev University, 64, Vladimirskaya st., Kiev, 252601, Ukraine
N. I. Proskura
Affiliation:
Administration of Exclusion Zone, 14, Sovetskaya st., Chernobyl, 255620, Ukraine
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Abstract

The Shelter constructed above the destroyed Unit-4 of the Chernobyl NPP contains 20 MCi of nuclear fuel. More than 1000 m3 of intermediate-level radioactive water is disposed in its basement. The purpose of this work was to simulate migration of the radionuclides 90Sr and 137Cs from the Shelter into the subsurface environment to evaluate their migration rate and migration paths. A mathematical model accounting for the coupled transport of water and radionuclides in variably saturated media was used. The lack of suitable experimental and field studies excluded the possibility of complete validating the model. Results of the simulations will be useful for future field studies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 1335
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Chernobyl Accident, edited by Baryakhtar, V.G., Naukova dumka, Kiev, 1995, pp. 170–259, 376–3 78. (in Russian)Google Scholar
2. Observation Results of Water Location within the Shelter, Report No. 2849, ISTC Ukrytie, Chernobyl, 1993, pp. 23–87.(in Russian)Google Scholar
3. Water within the Shelter, Report No. 09–013/22, ISTC Ukrytie, Chernobyl, 1993, pp. 13–31. (in Russian)Google Scholar
4. On-going and Predictive Estimations of Radiogeological Condition Changes of the Exclusion Zone. Development of Recommendations for Improvement of Groundwater Monttoring, Report No. 0195V022415, Inst. Geological Sciences, Kiev, 1995, pp. 17–38.(in Russian)Google Scholar
5. White, M.D. and Nichols, W.E., MSTS: Multiphase Subsurface Transport Simulator Theory Manual, PNL-8636, Pacific Northwest Laboratory, Richland, Washington, 1992.10.2172/139471Google Scholar
6. White, M.D. and Nichols, W.E., MSTS: Multiphase Subsurface Transport Simulator User's Guide and Reference, PNL-8637, Pacific Northwest Laboratory, Richland, Washington, 1993.Google Scholar
7. Groundwater Monitoring and Field Studies of Radionuclides Migration in Sites of Their Local and Regional Accumulation within Exclusion Zone, Report No. 0194V030392, Inst. Geological Sciences, Kiev, 1994, pp. 90–127.(in Russian)Google Scholar