Registration Number
0302U005136,
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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Дослідження сорбційно-селективної здатності клиноптилолітів та процесів іонного обміну на них
Head
Krasnop'orova A.P.,
Registration Date
25-03-2002
Organization
Kharkov National University named after V.N.Karazin
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Object of research – natural zeolite – clinoptilolite from Sokirnitsk deposit of Ukraine. The purpose of activity – research of sorption-selectivity clinoptilolite from Sokirnitsk deposit concerning radionuclides 137Cs and 90Sr depending on the physicochemical factors (density of solution, рН, temperature); analysis of effect of physicochemical properties (charge, size, constitution of electronic shell of occlusioned ions) on ion-exchange responses on clinoptilolite; analysis of isotherms of a sorption and realization of the thermodynamic description of process of exchange on clinoptilolite. Method of testing – radiometric analysis. Complex research of effect of physicochemical properties clinoptilolite and radionuclides 137Cs and 90Sr and their frame, рН of solution, temperature, density of stranger ions and isotope carrier on sorption-selectivity clinoptilolite for the first time is conducted. Is rotined, that on сорбционно-selectivity clinoptilolite considerable effect render the physicochemical properties and frame of zeolite and occlusioned ions, рН of solution, temperature, density of strangerions and isotope carrier. The outcomes of analysis of sorption-selective properties clinoptilolite enable to consider this zeolite as breeding a natural sorbent, which one allows on a sampling basis to select from aqueous solutions large cations alkaline and earth metals, in particular, successfully to use for refinement of a polluted water by radionuclides 90Sr and 137Cs at low-level salinity and contents of carriers. The results of a research work are transferred for implantation to a Scientific Exploratory Institute of Main Chemistry of Kharkov.
Product Description
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2020-04-03
