Affordable Access

Thermal Analysis and Immobilisation of Spent Ion Exchange Resin in Borosilicate Glass

Authors
Publication Date
Disciplines
  • Chemistry

Abstract

Thermal Analysis and Immobilisation of Spent Ion Exchange Resin in Borosilicate Glass New Journal of Glass and Ceramics, 2012, 2, 111-120 http://dx.doi.org/10.4236/njgc.2012.23016 Published Online July 2012 (http://www.SciRP.org/journal/njgc) 111 Thermal Analysis and Immobilisation of Spent Ion Exchange Resin in Borosilicate Glass Nasir Hamodi*, Kassandra Papadopoulou, Tristan Lowe, Timothy Abram School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester, UK. Email: [email protected] Received April 4th, 2012; revised May 25th, 2012; accepted June 15th, 2012 ABSTRACT The underground disposal of waste arising from the nuclear industry needs constant evaluation in order to improve upon it through minimizing the volume and cost by reducing the amount of glass used without compromising the safety of any leakage from the radioactive waste form. The immobilization of the spent resin (NRW-40) in borosilicate glass was investigated to meet the acceptance criteria for disposal of nuclear waste. The organic mixed bed resin in granular form was used as a waste target. The analysis of surrogate resin doped with radioactive and non-radioactive cesium (Cs) and cobalt (Co) was carried out to investigate their thermal and chemical properties and their compatibility with an alkaline borosilicate glass. The thermal analysis indicates that the structural damage caused by 1 mSv gamma radiation to the radioactive resin has altered its properties in comparison with the non-radioactive resin, same amount of cesium (8.88 wt%) and cobalt (1.88 wt%) were used in both resins. The immobilization of residue shows that the excess sulfur in the residue caused phase crystallization in the final glass matrix. It was found that the volatilization of Cs-137 and Co-60 from the successful radioactive resin-glass matrix (HG-3-IER-500) were more than that in the non-radioactive resin-glass matrix (HG-3-IEX-500). The study demonstrates comprehensiv

There are no comments yet on this publication. Be the first to share your thoughts.