FILTERS, SORBENTS, AND AIR CLEANING SYSTEMS AS ENGINEERED SAFEQUARDS IN NUCLEAR INSTAL¬LATIONS

摘要

The purpose of this review is first, to present briefly some of the gas cleaning methods used at nuclear reactor plants and other places where radioactive substances must be removed from air before it is released to the atmosphere;second, to present pertinent information about the physical and chemical properties of fission products as they relate to trapping;third, to indicate recent advances in the trapping (filtration and sorption) of these radiation emitters. High-efficiency particulate air filters, sorbents, and air cleaning systems are described, and their uses as engineered safeguards for trapping radioactive aerosols and gases generated in nuclear installations are evaluated.