DEVELOPMENT OF CHARACTERIZATION PROTOCOL FOR MIXED LIQUID RADIOACTIVE WASTE CLASSIFICATION

  • Norasalwa Zakaria
  • Syed Asraf Fahlawi Wafa S M Ghazi
  • Yii Mei Wo
  • Sarimah Mahat
  • Mohamad Annuar Assadat Husain

Abstract

Mixed organic liquid waste generated from health-care and research activities containing tritium, carbon-14, and other radionuclide posed specific challenges in its management. Often, this waste becomes legacy waste in many nuclear facilities and being considered as ‘problematic’ waste. One of the most important recommendations made by IAEA is to perform multistage processes aiming at declassification of the waste. At this moment, approximately 3000 bottles of mixed liquid waste, with estimated volume of 6000 litres are currently stored at the National Radioactive Waste Management Centre, Malaysia and some have been stored for more than 25 years. The aim of this study is to develop a characterization protocol towards reclassification of these wastes.  The characterization protocol entails waste identification, waste screening and segregation, and analytical radionuclides profiling using analytical procedures involving gross alpha beta, and gamma spectrometry.    The results obtained from the characterization protocol are used to establish criteria for speedy classification of the waste.   

Published
2017-04-26
How to Cite
ZAKARIA, Norasalwa et al. DEVELOPMENT OF CHARACTERIZATION PROTOCOL FOR MIXED LIQUID RADIOACTIVE WASTE CLASSIFICATION. Jurnal Sains Nuklear Malaysia, [S.l.], v. 29, n. 1, p. 18-27, apr. 2017. ISSN 2232-0946. Available at: <https://jsnm.nuclearmalaysia.gov.my/index.php/jsnm/article/view/3>. Date accessed: 08 apr. 2020.