Chromatographic separation of strontium and cesium with mixed zeolite column

Hitoshi Mimura, Takaaki Kobayashi, Kenichi Akiba

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Chromatographic separation of heat-generating nuclides90Sr and137Cs from high-level liquid wastes has been studied by means of column packed with inorganic ion-exchangers. The distribution coefficients (Kd) of Sr2+and Cs+onto zeolites decreased with increasing concentrations of monovalent cations. The retention volumes (VR) with a 2M (= mol/dm3) NH4CI solution decreased in the order, natural mordenite (NM) »chabazite>clinoptilolite for Cs+, and titanic acid » zeolite Y for Sr2+ The column containing mixtures of Y and NM was effective for selective adsorption of Sr2+and Cs+from a simulated waste solution, and chromatographic separation of these adsorbed nuclides was accomplished by passing a 2M NH4CI solution through the column of mixing ratio of Y: NM=3: 2.

Original languageEnglish
Pages (from-to)60-67
Number of pages8
Journaljournal of nuclear science and technology
Issue number1
Publication statusPublished - 1995 Jan
Externally publishedYes


  • Cesium 137
  • Cesium ions
  • Chromatographic separation
  • Distribution coefficient
  • Heat-generating nuclides
  • High-level radioactive wastes
  • Inorganic ion- exchangers
  • Monovalent cations
  • Retention volume
  • Strontium 90
  • Strontium ions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering


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