Article
Assessment of state-of-the-art models for predicting the remobilisation of radionuclides following the flooding of heavily contaminated areas: the case of Pripyat River floodplain
Author/s | Monte, Luigi
Periáñez Rodríguez, Raúl Kivva, Sergey Laptev, Gennady Angeli, Giacomo Barros, Haydn |
Department | Universidad de Sevilla. Departamento de Física Aplicada I |
Publication Date | 2006 |
Deposit Date | 2022-06-03 |
Published in |
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Abstract | The performances of models are assessed to predict the wash-off of radionuclides from contaminated
flooded areas. This process should be accounted for in the proper management of the aftermath of a nuclear
accident. The ... The performances of models are assessed to predict the wash-off of radionuclides from contaminated flooded areas. This process should be accounted for in the proper management of the aftermath of a nuclear accident. The contamination of the Pripyat River water following the inundation of a floodplain heavily con taminated by 90Sr and 137Cs of Chernobyl origin is used asthe basisfor modelling. The available experimental evidence demonstrated that remobilisation of radiostrontium is an important process implying a significant secondary radioactive load of water flowing over the contaminated floodplain. On the contrary, there is no em pirical evidence of a similar behaviour for radiocaesium. In general, state-of-the-art models properly predicted the remobilisation of strontium, whereas they significantly overestimated radiocaesium concentrations in wa ter. The necessary model improvements for a more accurate prediction of radiocaesium contamination levels include a reassessment of the values of the model parameters controlling the remobilisation process. |
Citation | Monte, L., Periáñez Rodríguez, R., Kivva, S., Laptev, G., Angeli, G. y Barros, H. (2006). Assessment of state-of-the-art models for predicting the remobilisation of radionuclides following the flooding of heavily contaminated areas: the case of Pripyat River floodplain. Journal of Environmental Radioactivity, 88 (3), 267-288. |
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