| 摘要 |
<p>PURPOSE:To provide an inexpensive gaseous iodine adsorbent excellent in adsorbing performance especially at high humdity, stably maintaining its performance and used for adsorbing and removing gaseous iodine, e.g. radioactive gaseous iodine contained in off-gas from a nuclear power plant. CONSTITUTION:This gaseous iodine adsorbent is made of at least one kind of compd. selected from among bismuth oxide hydrate (Bi2O3.lH2O) (l is a positive number), bismuth oxynitrate hydrate [Bi6O6(OH)x-(NO3)(6-x).mH2O] [0<x<6 and (m) is 0 or a positive number] and zirconium oxide hydrate (ZrO2.nH2O) [(n) is a positive number].</p> |
