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Nuclides migration prediction in heterogeneous media in disposal site. |
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Abstract Homogenous media assumption and average parameter model are common methodologies to predict the migration of nuclide. However, these kinds of methods will bring obvious deviation to that of typical heterogeneous media. Heterogeneity was solved by constructing a function between hydrogeologic parameters and fractal dimensions of the porous media in the projected radioactive waste disposal site. The hydrogeologic papameters identified in this way were further applied to predict the migration of the representative nuclides 3H and 90Sr in the radioactive waste disposal site. The prediction of nuclide migration based on fractal method was more accurate than that based on regression method. The predicted concentration was also a function of distribution coefficient of the nuclides.
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Received: 11 August 2008
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[1] |
. [J]. CHINA ENVIRONMENTAL SCIENCECE, 2000, 20(5): 0-0. |
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