Journal of Radioanalytical and Nuclear Chemistry

, Volume 283, Issue 2, pp 289–296 | Cite as

Uranium removal from aqueous solutions by wood powder and wheat straw

  • Saeed Bagherifam
  • Amir Lakzian
  • Seyed Javad Ahmadi
  • Mohammad Farhad Rahimi
  • Akram Halajnia


The influence of initial uranium concentration, solution pH, contact time and adsorbent mass was investigated for removal of uranium from aqueous solutions by pine wood powder and wheat straw using a batch technique. The maximum removal efficiency of uranium achieved at pH 8 and 7 for pine wood powder and wheat straw, respectively. Langmuir and Freundlich adsorption isotherms and three kinetic models of adsorption including; Elovich, Lagergren pseudo-first and Lagergren pseudo-second order were used to describe the adsorption mechanisms. The uranium sorption onto wood and wheat straw powders followed a Freundlich isotherm. The kinetic studies showed that the data fitted very well to the pseudo-second order model in the studied concentration range of uranium for both adsorbents. Uranium desorption from loaded adsorbents also studied using batch techniques as a function of desorptive reagent, desorption time and desorptive reagent concentration. The results of the experiment indicated that the optimum desorption efficiency of uranium for wood powder and wheat straw occurred in 5 min shaking time, using 1.5 M HNO3 and 2 M Na2CO3 solutions, respectively.


Uranium Wood powder Wheat straw Adsorption isotherms Adsorption kinetics 



The authors gratefully acknowledge the support provided by Ferdowsi University of Mashhad. We would like to express our special regards and appreciation to Prof. Dr. Sema Akyil in Ege University, Institute of Nuclear Sciences, for his advice and valuable suggestions. We also wish to thank Mr. Ali Moghimi and Mr. Abolfazl Darroudi for their useful suggestions.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  • Saeed Bagherifam
    • 1
  • Amir Lakzian
    • 1
  • Seyed Javad Ahmadi
    • 2
  • Mohammad Farhad Rahimi
    • 3
  • Akram Halajnia
    • 1
  1. 1.Department of Soil Science, Faculty of AgricultureFerdowsi University of MashhadMashhadIran
  2. 2.Chemistry Research GroupNuclear Science and Technology Research Institute, AEOITehranIran
  3. 3.Department of Nuclear Physics, Faculty of ScienceFerdowsi University of MashhadMashhadIran

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