The Application of Fiber Ion Exchange Sorbents for Wastewater Treatment and Purification of Gas Mixtures
Journal of Energy, Environmental & Chemical Engineering
Volume 5, Issue 1, March 2020, Pages: 10-13
Received: May 7, 2020; Accepted: May 26, 2020; Published: Jun. 15, 2020
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Authors
Ilnur Garipov, Laboratory of Interdisciplinary Technologies, Institute of Nuclear Physics, Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
Renat Khaydarov, Laboratory of Interdisciplinary Technologies, Institute of Nuclear Physics, Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
Olga Gapurova, Laboratory of Interdisciplinary Technologies, Institute of Nuclear Physics, Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
Rashid Khaydarov, Laboratory of Interdisciplinary Technologies, Institute of Nuclear Physics, Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
Svetlana Evgrafova, Department of Biotechnology, Siberian Federal University, Krasnoyarsk, Russia; Laboratory of Ecophysiology of Permafrost Systems, V. N. Sukachev Institute of Forest FRC KSC SB RAS, Krasnoyarsk, Russia
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Abstract
We developed a method of modifying the polyester material to produce ion exchange fiber sorbents. The production of cation exchange sorbents involved the treatment of polyester fibers with a 20–25% solution of NH2NH2H2O at 70–90°C and a 5% solution of NaOH at 40°C. Anion exchange sorbents were prepared by the treatment of cation exchange sorbents with a 1–5% solution of polyethylenimine at ambient temperature. These new types of sorbents can be used to remove radionuclides, heavy metal ions and organic contaminants from wastewater and drinking water. We studied main properties of these sorbents and their ability to remove 57Co, 60Co, 65Zn, 89Sr, 90Sr, 134Cs, 137Cs and other radionuclides, heavy metal ions (Zn, Ni, Cu, Sb, Pb, Cd, Cr, U, etc.), organic molecules M (pesticides, phenols, dioxins, benzene, toluene, etc.), radio-labeled organic molecules M-32P, M-131I, M-99Mo+99mTc, M-14C, etc. The static exchange capacity is 1–2 meq/g for cationic sorbents and 0.5–1 meq/g for anionic sorbents. The developed sorbents have been effective in removing low concentrations of contaminants from water (lower than 100–200 mg/L) as well as in purifying the gas mixtures from toxic and aggressive gases: SO2, SO3, NH3, H2S, etc.
Keywords
Polyester, Cation Exchange, Anion Exchange, Fiber Sorbent, Wastewater Treatment
To cite this article
Ilnur Garipov, Renat Khaydarov, Olga Gapurova, Rashid Khaydarov, Svetlana Evgrafova, The Application of Fiber Ion Exchange Sorbents for Wastewater Treatment and Purification of Gas Mixtures, Journal of Energy, Environmental & Chemical Engineering. Vol. 5, No. 1, 2020, pp. 10-13. doi: 10.11648/j.jeece.20200501.12
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Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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