Separation of Radionuclides of Silver and Antimony from Low‐Level Liquid Waste of Research Reactor by Using Iron(II) Hydrous Oxide Coprecipitation

Le résumé fourni par la source

After upgrading the Pakistan Research Reactor‐1 from 5 MW (Th) to 10 MW (Th), increased inventory of 100mAg and 124Sb in the waste stream demanded some sort of treatment to bring the radioactivity levels within the disposal limits. A chemical treatment, making use of scavenging precipitation of the radionuclides with hydrous oxides of iron, was studied. Fe(II) hydrous oxide coprecipitation by using green vitriol provided complete removal of silver activity and an acceptable decontamination factor (DF) for antimony. Coagulant doses and other parameters for decontamination of the bulk of the waste were studied and optimized. Various parameters and results of the process are presented. High DFs for silver and antimony radionuclides have been achieved.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.