Migration of Concentrated Radionuclide Solutions in Water-Saturated Soil—Investigation of a Hypothetical High Activity Waste Solution Discharge Accident

The migration behavior of I3'Cs extracted from the contaminated tea a t Chernobyl accident in sandy clay soil has been studied by batch and column experiments. Time dependent sorption behavior of 13;Cs extracted from the tea reaches equilibrium slower by 6.5 times than 13'Cst ions. However, the distribution coefficient of ' T s extracted from the tea for the sandy clay soil was higher than that of lJiCs+ ions. These results indicate that the sorption of the I3'Cs attached to the organic materials dissolved from the tea on the sandy clay soil is slower than that of 13'Csf ions, and the I 3 T s attached to the organic materials have more affinity to the sandy clay soil than 13'Cs+ ions. In the column experiments, most part of W s were adsorbed on the top of soil layer 0-10 cm in depth and small amounts of 13'Cs were flowed out from the soil layer. The concentration profile a t the top of soil layer of 0-lOcm is in agreement with that estimated by the dispersiontransport equation considered ion-exchange reaction indicating that the migration of lS7cS extracted from the contaminated tea a t the portion of high concentration is dominated by ionexchange reaction. However, the concentration profile a t deeper depth than lOcm is not fitted by estimation by such equation. Therefore, the mechanism other than ion-exchange dominates the migration of I3'Cs in the portion of low concentration.

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Retardation Factor of a Radionuclide for Undisturbed and Disturbed Sandy Soil

Ohnuki

Tanaka

Ogawa

et al. 1989

Nuclear Technology

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Migration of Concentrated Radionuclide Solutions in Water-Saturated Soil—Investigation of a Hypothetical High Activity Waste Solution Discharge Accident

Cited by 4 publications

References 0 publications

Simplified Assessment Methodology of Radionuclide Contamination for Subsurface Soil

Simplified Assessment Methodology of Radionuclide Contamination for Subsurface Soil

Migration of¹³⁷Cs Extracted from Contaminated Tea in Sandy Clay Soil

Retardation Factor of a Radionuclide for Undisturbed and Disturbed Sandy Soil

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Migration of Concentrated Radionuclide Solutions in Water-Saturated Soil—Investigation of a Hypothetical High Activity Waste Solution Discharge Accident

Cited by 4 publications

References 0 publications

Simplified Assessment Methodology of Radionuclide Contamination for Subsurface Soil

Simplified Assessment Methodology of Radionuclide Contamination for Subsurface Soil

Migration of137Cs Extracted from Contaminated Tea in Sandy Clay Soil

Retardation Factor of a Radionuclide for Undisturbed and Disturbed Sandy Soil

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Migration of¹³⁷Cs Extracted from Contaminated Tea in Sandy Clay Soil