Thermal plasma treatment of waste ion exchange resins by CO2 injection

Atsushi Nezu, Kouichi Moro, Takayuki Watanabe

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The amount of waste ion exchange resin generated from nuclear power plants is increasing; therefore, the effective method to reduce the volume of the waste resins is required. The purpose of this paper is to reduce the weight and volume of the resin and to stabilize the radionuclide such as cobalt by reactive thermal plasmas with carbon dioxide injection, and to investigate the reaction mechanism of the resins doped with cobalt. The resins were treated by thermal plasmas under atmospheric pressure. The weight was reduced to 70% after 40 min of treatment without reactive gas injection. At 12 L/min of carbon dioxide injection, the weight reduction was enhanced to 96%. Thermal plasma treatment provides the effective and rapid reduction in weight and volume of the resins. Moreover, the treatment has good advantages for the stabilization of the doped metal.

Original languageEnglish
Pages (from-to)432-435
Number of pages4
JournalThin Solid Films
Volume506-507
DOIs
Publication statusPublished - May 26 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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