濾紙膜を用いた放射性実験廃液からの<SUP>125</SUP>Iの濾過型除去

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タイトル別名
  • Decontamination of <SUP>125</SUP>I from Radioactive Liquid Waste with Paper Filter
  • 濾紙膜を用いた放射性実験廃液からの125Iの濾過型除去
  • ロシ マク オ モチイタ ホウシャセイ ジッケン ハイエキ カラ ノ 125I ノ ロカガタ ジョキョ

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抄録

The characteristics of an anion exchange paper membrane and an activated carbon loaded paper membrane to remove 125I from radioactive experimental waste in filtration system have been studied with various solutions which were filtrated. These paper membranes have the large solution fluxes in comparison with the column loaded with the anion exchange resin or the activated charcoal though the former totally bound less iodide ion than the latter. These feature suggest that the paper membranes might be utilized to treat a large quantity of radioactive waste, in which 125I concentration slightly exceeded the dose limit. Notably, the anion exchange paper membrane possesses the three outstanding characteristics; 1) the rapid binding to the 125I ion, 2) less influence of the substances, e.g. cell fragments, coexisted in the solutions on the 125I adsorption than the activated carbon loaded paper membrane, and 3) higher selective adsorption to iodide ion than to the bromide and chloride ions. The results suggested that an anion exchange membrane might be appropriate for the filtration remov-ing system.

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