한국방사성폐기물학회:학술대회논문집 (Proceedings of the Korean Radioactive Waste Society Conference)

한국방사성폐기물학회 (Korean Radioactive Waste Society)
권호 표지

CHEMICAL DECONTAMINATION OF SOIL CONTAMINATED WITH Cs-137

  • H. J. Won (Korea Atomic Energy Research Institute) ;
  • Kim, G. N. (Korea Atomic Energy Research Institute) ;
  • C. H. Jung (Korea Atomic Energy Research Institute) ;
  • Park, W. K. (Korea Atomic Energy Research Institute) ;
  • Kim, M. G. (Korea Atomic Energy Research Institute) ;
  • W. Z. Oh (Korea Atomic Energy Research Institute) ;
  • Park, J. H. (Korea Atomic Energy Research Institute)
  • 발행 : 2004.02.01
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초록

The removal efficiency of several washing agents on the $Cs^+$ ion was investigated. Leaching of $Cs^+$ ion from the soil surface by washing agents is affected by the exchange capability of the washing solution. Reuse tests of the effective soil washing agents such as $BaCl_2$, NaOH, citric acid＋ $HNO_3$ and oxalic acid were performed. NaOH, citric acid ＋ $HNO_3$ and oxalic acid solutions can be reused after passing through the ion exchange column. Among the tested solutions, both of citric acid＋ $HNO_3$ and oxalic acid were effective for the decontamination of TRIGA research reactor soil. The radioactivity of soils can be reduced to a release level by the successive application.

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