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Information × Registration Number 0213U003217, 0107U011675 , R & D reports Title Colloid-chemical removal aspects of the radionuclides from dispersible systems popup.stage_title Head Pshinko Galina Nikolaevna, Registration Date 11-01-2013 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 The object of study connections U(VI) and other radionuclides in the environment. Purpose - sorption-desorption behavior of U(VI) and other radionuclides in the environment and the scientific rationale for the selection of sorbents and desorbing agents for decontamination of the environment. Research methods - X-ray, photometric, baromembranes, sorption, mathematical modeling. Main results - the peculiarities of desorption U(VI) from modeling clay-containing samples of modified hydroxide Al(III) and Fe(III), which allowed a scientific basis to choose the most effective reagent - citric acid, and the conditions of its application for the decontamination of contaminated with uranium (VI) soils and sludges. The adsorption of uranium in mineral adsorbents - natural aluminum silicates (montmorillonite, natural and modified humic acids, hydroxides of aluminum and iron), synthetic sorbents (layered double hydroxides - "anionic" clay) to separate containing radionuclides aqueous media. Scientific innovation - the first time on the basis of systematic studies, the influence of aluminum hydroxides and iron (III), deposited on the surface of natural aluminosilicates for the sorption-desorption behavior of uranium (VI) in the presence of natural and man-made chelating ligands. On the example of the natural saponite clay with a high content of hematite shown that iron minerals, unlike the aluminum-containing, can be effectively used as sorbents for water purification from uranium. Practical implications - the first to show that the layered double hydroxide intercalated EDTA, is a highly sorbent to remove not only the cationic and most importantly, the carbonate compounds and anionic U(VI) in a wide range of pH from water with different salinity and the presence of relatively high concentrations bicarbonate and carbonate ions characteristic of both the natural and for waste mine water. The peculiarities of the desorption U(VI) from model clay-containing samples of modified hydroxide Al(III) and Fe(III), have allowed a scientific basis to choose the most effective reagent - citric acid, and the conditions of its application for the decontamination of contaminated uranium (VI) of the soil and sludge. Applications - Enterprise nuclear power. Product Description popup.authors Бартницький Олександр Євгенович Гомеля Микола Дмитрович. Горбань Максим Володимирович Кобець Світлана Олексіївна Косоруков Олександр Олександрович Криворучко Антоніна Петрівна Мацибура Галина Савівна Пузирна Любов Миколаївна Смоголь Олена Анатоліївна Юрлова Людмила Юріївна Яцик Богдан Петрович popup.nrat_date 2020-04-02 Close