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Home Archive of journals Volume 11, No. 3, 2021 Development and application of an integrated system of mathematical models for the transfer of radionuclides upon a hypothetic accident to minimize radioecological consequences

DEVELOPMENT AND APPLICATION OF AN INTEGRATED SYSTEM OF MATHEMATICAL MODELS FOR THE TRANSFER OF RADIONUCLIDES UPON A HYPOTHETIC ACCIDENT TO MINIMIZE RADIOECOLOGICAL CONSEQUENCES

JOURNAL: Volume 11, No. 3, 2021, p. 313-326

HEADING: Ecology

AUTHORS: Sarkisov, A.A., Antipov, S.V., Bilashenko, V.P., Vysotsky, V.V., Dzama, D.V., Kobrinskiy, .N., Pripachkin, D.A., Smolentsev, D.O., Shvedov, P.A.

ORGANIZATIONS: Nuclear Safety Institute of the Russian Academy of Sciences

DOI: 10.25283/2223-4594-2021-3-313-326

UDC: 621.039.4.003

The article was received on: 31.05.2021

Keywords: Russian Arctic zone, accidents, emergency response, nuclear power, low-power nuclear power plants, nuclear-powered icebreaker, safety, mathematical model, sea ice, floating thermal nuclear power plant

Bibliographic description: Sarkisov, A.A., Antipov, S.V., Bilashenko, V.P., Vysotsky, V.V., Dzama, D.V., Kobrinskiy, .N., Pripachkin, D.A., Smolentsev, D.O., Shvedov, P.A. Development and application of an integrated system of mathematical models for the transfer of radionuclides upon a hypothetic accident to minimize radioecological consequences. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2021, vol. 11, no. 3, pp. 313-326. DOI: 10.25283/2223-4594-2021-3-313-326. (In Russian).


Abstract:

An integrated system of mathematic models is developed and implemented. The system is aimed at predicting the spread of the radioactive materials in the Arctic waters from a complex source distributed in space and time, formed by an emergency release of radionuclides from a nuclear-powered facility. Such approach allows taking into account various mechanisms of radionuclide transfer in arbitrary combinations. In addition to customary considered atmospheric and marine advection-diffusion processes with sedimentation on the underlying surface, it takes into consideration other mechanisms. Among them are particle sedimentation to the sea bottom with bottom capture, reverse process of washing-out from the bottom sediments. Specially attended is the Arctic-specific mechanism of particle ice-binding in the sea ice, drift of the frozen particles with ice, and their return to marine environment in result of ice thawing. The latter process may result in the appearance of the radioactive source at the large distance from the initial source and long time after the release event. The integrated model complex will provide the most realistic picture of the radioactive trace spread. It will sure be the effective tool for minimizing the emergency negative impact on the population and environment. The article a stage of long-term work that is currently ongoing.


Finance info: The work is supported by the Russian Science Foundation Grant No. 20-19-00615 Research of the Radioecological Problems of the Russian Arctic in Order to Enhance Radiation and Ecological Safety of Humans and the Environment when Using Intensively Offshore and Onshore Nuclear-Powered Installations for the Sake of Advanced Development of the Region.

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DOI 10.25283/2223-4594