科技报告详细信息
Deep Bed Adsorption Testing using Silver-Functionalized Aerogel
Nick Soelberg ; Tony Watson
关键词: aerogel;    iodine sorption;   
DOI  :  10.2172/1062194
RP-ID  :  INL/EXT-12-26522
PID  :  OSTI ID: 1062194
学科分类:核能源与工程
美国|英语
来源: SciTech Connect
PDF
【 摘 要 】

Nuclear fission results in the production of fission products and activation products, some of which tend to be volatile during used fuel reprocessing and evolve in gaseous species into the reprocessing facility off-gas systems. Analyses have shown that I129, due to its radioactivity, high potential mobility in the environment, and high longevity (half life of 15.7 million years), can require control efficiencies of up to 1,000x or higher to meet regulatory emission limits. Two Aerogel sorption tests that have been performed this fiscal year. The maximum iodine decontamination factor (DF) was measured to be over 10,000, above the 1,000-10,000 target DF range. The mass transfer zone may be as short as 0.5 inches under the sorption conditions of the first test. Only a small fraction of the iodine sorbed on Bed 1 was desorbed during the purge periods. The silver-functionalized Aerogel appears to have potential to be a very effective and efficient iodine sorbent.

【 预 览 】
附件列表
Files Size Format View
RO201704190002956LZ 674KB PDF download
  文献评价指标  
  下载次数:4次 浏览次数:25次