Registration Number
0203U008016,
0101U002783
, R & D reports
Title
Physico-chemical investigations of sorbtional-selective characteristics of natural ceolites in contents of radionuclides and heavy metals in liquid media
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Head
Krasnopjorova A.,
Registration Date
07-04-2003
Organization
Kharkov National University named after V.N.Karazin
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Object of research — synthetic zeolites — erionite, NaA, NaX, NaY. The purpose of activity — research of sorption-selectivity synthetic zeolites, concerning radionuclides 137 Cs and 90Sr depending on the physicochemical factors (density of solution, pH, temperature); analysis of effect of physicochemical properties (charge, size, constitution of electronic shell of occlusioned ions) on ion-exchange responses on synthetic zeolites; analysis of isotherms of a sorption and realization of the thermodynamic description of process of exchange on synthetic zeolites. Method of testing — radiometric analysis. Complex research of effect of physicochemical properties synthetic zeolites and radionuclides 137Cs and 90Sr and their frame, pH of solution, temperature, density of stranger ions and isotope carrier on sorption-selectivity synthetic zeolites for the first time is conducted. Is rotined, that on sorption-selectivity synthetic zeolites considerable effect render the physicochemical properties and frame of zeolite and occlusioned ions, pH of solution, temperature, density of strangerions and isotope carrier. The outcomes of analysis of sorption-selective properties synthetic zeolites enable to consider this zeolites as breeding a sorbent, which one allows on a sampling basis to select from aqueous solutions large cations alkaline and earth metals, in partucular, successfully to use for refinement of a polluted water by radionuclides 137Cs and 90Sr at low-level salinity and contents of carriers.
Product Description
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2020-04-03
