Study of caesium adsorption on hydrated calcium-silicate-aluminate systems

Sandor Bagosi, Laszlo J. Csetenyi

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1 Citation (Scopus)

Abstract

Immobilization of caesium in cementitious matrixes was studied in the present paper which is a key issue of handling radioactive caesium containig wastes for caesium does not form stabile compounds therefor it can not be readily immobilized. Model matrices were prepared to map up the calcium-silicate-aluminate system considering caesium immobilization, which were of different starting compositions. To caracterize Cs sorption, distribution ratios were determined. Based on the results obtained the model matrix compositions were prepared using industrial grade materials and their caesium retardation and trapping were examined by means of leaching and sorption experiments. In the light of the results obtained, it can be established that immobilization of caesium significantly depend on the starting composition of the used matrix.

Original languageEnglish
Pages (from-to)2232-2235
Number of pages4
JournalKey Engineering Materials
Issue number136 PART 3
Publication statusPublished - 1 Dec 1997

Keywords

  • Adsorption
  • Caesium
  • CSAH-system
  • Leaching
  • Radioactive waste immobilization

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