Peer-reviewed articles 17,970 +


Title: THE USE OF NATURAL ZEOLITES OF TRANSCARPATHIA TO SOLVE ENVIRONMENTAL PROBLEMS
THE USE OF NATURAL ZEOLITES OF TRANSCARPATHIA TO SOLVE ENVIRONMENTAL PROBLEMS

PlumX Article Metrics by Elsevier
Oleksandr Sych; Svyatoslav Vuchkan; Hanna Vasylyeva; Myroslav Karbovanets; Marianna Yevych
10.5593/sgem2022V/6.2/s24.05
10.5593/sgem2022V/6.2
1314-2704
978-619-7603-52-1
English
22
6.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Micro and Nano Technologies
Purification of aqueous solutions from radionuclide contamination is an extremely problematic topic, which is the subject of many scientific papers. This scientific topic is very relevant to Ukraine. In particular, the synthetic adsorbents – activated carbon, zeolites, metal oxide-adsorbents TiO2, titanium or zirconium phosphates, ion exchange resins, etc., are often used for the removal of heavy metal cations Pb (II), Cd (II), Ba (II), Hg (II), Sr (II) as well as some anions Cl-, F- from the aquatic environment.
A special place among adsorbents is occupied by ion exchange resins, which, as a rule, have an organic matrix, for example, styrene-vinylbenzene with functional groups fixed on it. Ion-exchange resins, along with titanium dioxide and activated carbon, are most widely used in industry to purify aqueous solutions from heavy metal cation and radionuclides. These numbered adsorbents are synthetic materials.
However, some adsorbents were created by nature. Natural zeolite, deposits of which are in the Zakarpattya region of Ukraine, are among them. The use of natural zeolites of Transcarpathia can solve some environmental problems caused by 90Sr pollution in the aquatic environment.
All chemical processes including adsorption occur in complicated mechanisms and are reversible. After some time, equilibrium has been introduced. These complex mechanisms can be divided into several simple stages, which can be described by a relatively simple mathematical equation. In this study, the adsorption of Sr2+ ions from aqueous solutions by natural zeolite was investigated. And four most common kinetic models were applied for analysis of the experimental adsorption data.
[1] J.M. Nriagu, J.M. Pacyna, Quantitative assessment of worldwide contamination of air, water and soils by trace metals, Nature 333 (xf) (1988) 134-139
[2] Mironyuk, I.F.; Mykytyn, I.M.; Kaglyan, O.Ye.; Gudkov, D.I.; Vasylyeva, H.V. 90Sr adsorption from the aquatic environment of Chornobyl exclusion zone by chemically enhanced TiO2. Nucl. Phys. At. Energy, 2020, 21, 4, 347–353, https://doi.org/10.15407/jnpae2020.04.347.
[3] H. Vasylyeva, I. Mironyuk, M. Strilchuk, I. Maliuk, Kh. Savka, O. Vasyliev, Adsorption and possibility of separation of heavy metal cations by strong cation exchange resin, Chemical Physics Impact, Volume 3, 2021, 100056, https://doi.org/10.1016/j.chphi.2021.100056.
[4] Kylivnik Yu. M., Tryshyn V. V., Strilchuk M.V., Gaidar O.V., Vasylieva H.V., Vuchkan, S.I., Sych O.Ya., Syika, I.Yu. The titanium silicate influence on the Zn(II) and Sr(II) migration in the aquatic environment. Nucl. Phys. At. Energy, 2020, 21, 249-255, https://doi.org/10.15407/jnpae2020.03.249
[5] O. Oleksienko, S. Meleshevich, et al, Pore structure and sorption characterization of titanosilicates obtained from concentrated precursors by the sol-gel method. RSC Adv., 2015, 5, 72562, DOI: 10.1039/c5ra06985h
[6] Vasylyeva, H., Mironyuk, I., Strilchuk, M., et al., 2021a. Adsorption of zirconium ions by X-type zeolite. Biointerface Research in Applied Chemistry, 11 (5), 13421. http://dx.doi.org/10.33263/BRIAC115.1342113431
conference
https://doi.org/10.5593/sgem2022V/6.2/s24.05
Download PDF
Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 06-08 December, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
31-36
06-08 December, 2022
website
8900
natural zeolites, environmental problems, radionuclide, adsorbents