Remediation of soil/concrete contaminated with uranium and radium by biological method

  • Gye-Nam Kim
  • Seung-Su Kim
  • Hye-Min Park
  • Won-Suk Kim
  • Uk-Ryang Park
  • Jei-Kwon Moon
Article

Abstract

Biological method was studied for remediation of soil/concrete contaminated with uranium and radium. Optimum experiment conditions for mixing ratios of penatron and soil, and the pH of soil was obtained through several bioremediations with soil contaminated with uranium and radium. It was found that an optimum mixing ratio of penatron for bioremediation of uranium soil was 1 %. Also, the optimum pH condition for bioremediation of soil contaminated with uranium and radium was 7.5. The removal efficiencies of uranium and radium from higher concentration of soil were rather reduced in comparison with those from lower concentration of soil. Meanwhile, the removal of uranium and radium in concrete by bioremediation is possible but the removal rate from concrete was slower than that from soil. The removal efficiencies of uranium and radium from soil under injection of 1 % penatron at pH 7.5 for 120 days were 81.2 and 81.6 %, respectively, and the removal efficiencies of uranium and radium from concrete under the same condition were 63.0 and 45.2 %, respectively. Beyond 30 days, removal rates of uranium and radium from soil and concrete by bioremediation was very slow.

Keywords

Bioremediation Penatron Uranium Radium Soil Concrete 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • Gye-Nam Kim
    • 1
  • Seung-Su Kim
    • 1
  • Hye-Min Park
    • 1
  • Won-Suk Kim
    • 1
  • Uk-Ryang Park
    • 1
  • Jei-Kwon Moon
    • 1
  1. 1.Korea Atomic Energy Research InstituteDaejeonRepublic of Korea

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