Journal of Radioanalytical and Nuclear Chemistry

, Volume 241, Issue 3, pp 647–650 | Cite as

A study on the adsorption-exchange of UO22+,137Cs,169Yb and HPO42− on modified peat

  • Tingsheng Yue
  • Wenming Dong
  • Yukun Wang
Article

Abstract

The adsorption-exchange equilibrium time and the adsorption isotherms of UO22+,137Cs,169Yb and HPO42− on modified peat have been investigated by batch experiments. The effect of pH on the adsorption-exchange percentage (E) and the distribution coefficients (Kd) was also examined. It was found that the adsorption-exchange of UO22+ and169Yb on the modified peat was described well by Freundlich isotherm, whereas the adsorption-exchange of137Cs and HPO42− on modified peat corresponded to a Langmuir isotherm and the maximum adsorption capacities of the modified peat for137Cs and HPO42− ions were 4.4 and 4.1 μg/g respectively. The optimum pH for the adsorption-exchange of UO22+,137Cs,169Yb and HPO42− on the modified peat was 7.0 at 25°C.

Keywords

Physical Chemistry Inorganic Chemistry Adsorption Capacity Adsorption Isotherm Distribution Coefficient 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. L. Sanchez, W. R. Schell, E. D. Thomas, Health Phys., 54 (1988) 317.Google Scholar
  2. 2.
    E. P. Dunigan, C. W. Francis, Soil Sci., 114 (1972) 494.Google Scholar
  3. 3.
    W. R. Schell, A. L. Sanchez, C. Granlund, Water, Air Soil Poll., 30 (1986) 393.CrossRefGoogle Scholar
  4. 4.
    G. R. Aiken, D. M. Mcknight, R. L. Wershaw, P. MacCarthy (Eds), Humic Substances in Soil, Sediment and Water: Geochemistry, Isolation and Characterization, Wiley-Interscience, New York, 1985, p. 692.Google Scholar
  5. 5.
    B. Gu, J. Schmitt Z. Chen, L. Liang, J. F. McCarthy, Environ. Sci. Technol., 26 (1994) 38.Google Scholar
  6. 6.
    T. V. Sokolova, V. P. Strigutsky, S. V. Parmon, S. G. Prokhoyov, (Inst Probl. Ispol'zovan. Prirodn. Resursov Ekol., Belarus), Vestsi Akad. Navuk Belarusi, Ser. Khim. Navuk, 4 (1994) 61 (in Russian).Google Scholar
  7. 7.
    M. Yamamoto, Tokyo Prefecture, Japan, Kokai Tokkyo Koho JP 07,265.659[95,265,659] [Cl. B01D53/38], 17 Oct 1995, Appl. 94/95, 393, 30 Mar 1994, p. 3 (in Japanese).Google Scholar
  8. 8.
    I. F. Sedeh, P. Igsell, L. Ringoyist, E. B. Lindstroem, Resour. Environ. Biotechnol., 1 (1996) No. 2, 111.Google Scholar

Copyright information

© Akadémiai Kiadó 1999

Authors and Affiliations

  • Tingsheng Yue
    • 1
  • Wenming Dong
    • 1
  • Yukun Wang
    • 2
  1. 1.Radiochemistry Laboratory, College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouP. R. China
  2. 2.Department of Chemical EngineeringXian Petroleum InstituteXianP. R. China

Personalised recommendations