Paper Title:
Adsorption Properties of Vermiculite for Simulative Radionuclide Sr
  Abstract

Based on good cation exchange property of vermiculite,the adsorption of vermiculite for simulated radionuclide Sr was studied by the static adsorption method. The adsorption behaviors and the effect of the experimental conditions were investigated. The results show that the saturated adsorption capacity of vermiculite sample for the simulated radionuclide Sr was 8.246×10-2 mmol/g. The suitable pH value ranged from 4 to 11, the balanceable adsorption time was 3d, and the suitable temperature was 30°C. The main adsorption type was cation exchange. The adsorption mechanism can be described by Langmuir and Freundlich models. It acts better in accord with Langmuir model, and the correlation coefficient is 0.99974. This experimental study has important significance on low concentration of Sr radioactive waste liquid treatment.

  Info
Periodical
Edited by
Jinsheng Liang and Lijuan Wang
Pages
1-6
DOI
10.4028/www.scientific.net/AMR.96.1
Citation
W. Yang, T. J. Peng, Z. Miao, "Adsorption Properties of Vermiculite for Simulative Radionuclide Sr", Advanced Materials Research, Vol. 96, pp. 1-6, 2010
Online since
January 2010
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