Investigation of interaction behaviours of cesium and strontium ions with engineering barrier material to prevent leakage to environmental


Erentürk S., Hacıyakupoğlu S., Şenkal B. F.

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, vol.213, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 213
  • Publication Date: 2020
  • Doi Number: 10.1016/j.jenvrad.2019.106101
  • Journal Name: JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Artic & Antarctic Regions, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Compendex, EMBASE, Environment Index, Geobase, INSPEC, MEDLINE, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Nuclear waste, Barrier material, Sorption, Interaction, Cesium, Strontium, AQUEOUS-SOLUTIONS, ADSORPTION-ISOTHERM, REMOVAL, SORPTION, KINETICS, THERMODYNAMICS, EQUILIBRIUM, URANIUM(VI), WASTE, ACID
  • Istanbul Technical University Affiliated: Yes

Abstract

This study deals with performance of removal of cesium (Cs+) and strontium (Sr2+) ions from synthetic aqueous solution using amino pyridine sulfone amid resin as a barrier material for nuclear waste storage areas to reduce environmental risk. The effects of adsorbate concentration, temperature and contact time on the efficiencies of the engineering barrier material for Cs+ and Sr2+ ions were investigated and evaluated. It was found that total adsorption capacity was higher for cesium ions than strontium ions. Dubinin-Radushkevich (D-R) isotherm model was well fitted to the adsorption data for both ions. The micropore capacity of the barrier material was found as 4.20 mg for strontium ions and 5.40 mg for cesium ions. Delta H values were indicated that the interaction process is exothermic for both ions. The positive value of entropy for both ions show that randomness at the solid-solution interface increased. Pseudo-second-order model was well fitted the kinetic data.