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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, slk@dem.ipmms.kiev.ua
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

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