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Sorption of Radiocobalt on Bentonite and Kaolinite

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Abstract

The factors affecting the sorption of radiocobalt by bentonite and kaolinite were studied with the aim to assess important factors which should be included in modelling radiocobalt migration in soils and waters. The distribution coefficients of radiocobalt sorption on bentonite and kaolinite from aqueous solutions were determined by using the batch method, and it was found that they were insensitive to the loading, the initial pH, the ionic strength, the humic substance and the sorption direction. Thus, the sorption characteristics of radiocobalt on bentonite and kaolinite facilitated the mathematical modelling of radiocobalt migration. In addition, the sorption kinetics and the sorption mechanism of radiocobalt on bentonite and kaolinite were also examined.

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Authors and Affiliations

  1. Radiochemistry Laboratory, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 7300000, P. R. China

    Dong Wenming, Wang Xiangke, Shen Yi & Zhao Xudong

  2. Radiochemistry Laboratory, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 7300000, P. R. China

    Tao Zuyi

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  1. Dong Wenming
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  2. Wang Xiangke
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  3. Shen Yi
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  4. Zhao Xudong
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  5. Tao Zuyi
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Wenming, D., Xiangke, W., Yi, S. et al. Sorption of Radiocobalt on Bentonite and Kaolinite. Journal of Radioanalytical and Nuclear Chemistry 245, 431–434 (2000). https://doi.org/10.1023/A:1006759816462

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