Sorption of CH_3 ~(131)I from a Water Vapor-Air Flow onto Inorganic Sorbents Containing Ag and Nonferrous Metals (Cu, Ni, Zn)

摘要

Sorption of CH_3~(131)I from a water vapor-air medium onto Fizkhimin inorganic sorbents containing Ag and nonferrous metals (Cu, Ni, Zn) was studied. Ag-free Fizkhimin inorganic sorbents exhibit poor ability to take up CH_3~(131)I. No more than 51% of the initial 10-mg portion of CH_3~(131)I is taken up by the sorbents heated to 350℃. The sorbents containing 1.4-2 wt % Ag and 5.6-8 wt % nonferrous metal (Cu, Ni, Zn) show high ability to take up CH_3~(131)I (>99.8% uptake), with the performance of the Ni-containing sorbents remaining very high (>99.9%) with variation of various parameters of both the sorbents and the medium. The Cu- and Zn-containing analogs do not exhibit such properties.