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Liquid low-level radioactive wastes treatment by using hydrophobized track-etched membranes

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dc.contributor.author Zdorovets, M.V.
dc.contributor.author Yeszhanov, A.B.
dc.contributor.author Korolkov, I.V.
dc.contributor.author Güven, O.
dc.contributor.author Dosmagambetova, S.S.
dc.contributor.author Shlimas, D.I.
dc.contributor.author Zhatkanbayeva, Zh.K.
dc.contributor.author Zhidkov, I.S.
dc.contributor.author Kharkin, P.V.
dc.contributor.author Gluchshenko, V.N.
dc.contributor.author Zheltov, D.A.
dc.contributor.author Khlebnikov, N.А.
dc.contributor.author Kuklin, I.E.
dc.date.accessioned 2024-10-09T05:05:34Z
dc.date.available 2024-10-09T05:05:34Z
dc.date.issued 2020
dc.identifier.issn 0149-1970
dc.identifier.other doi.org/10.1016/j.pnucene.2019.103128
dc.identifier.uri http://rep.enu.kz/handle/enu/17495
dc.description.abstract In this paper, we present the results of liquid low-level radioactive wastes (LLLRW) treatment by direct contact membrane distillation (DCMD) using polyethylene terephthalate (PET) track-etched membranes (TeMs). PET TeMs were modified by styrene and triethoxyvinylsilane (TEVS) using UV-induced grafting. Modification led to increase in the contact angle to 99° of PET TeMs (pore size from 150 to 300 nm). Hydrophobic PET TeMs were investigated by X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), goniometric analysis, gas permeability test, liquid entry presser (LEP) analysis and scanning electron microscope (SEM). Prepared membranes were tested in treatment of LLLRW by DCMD. The influence of pore size on water flux and rejection degree was studied. Rejection degree was evaluated by conductometry and atomic emission methods. Decontamination factors (evaluated by gamma-ray spectroscopy) for 60Co, 137Cs, and 241Am were found to be 85, 1900 and 5 respectively. In most cases degree of rejection of Cs, Mo, Sr, Sb, Al, Ca, Fe, K, Mg and Na ions were more than 90% and close to 100%. The use of TeMs with a narrow pores size distribution and without tortuous channels allowed us to achieve better purification from radioactive wastes in comparison with hollow-fiber membranes. ru
dc.language.iso en ru
dc.publisher Progress in Nuclear Energy ru
dc.relation.ispartofseries 118;103128
dc.subject Track-etched membranes ru
dc.subject Hydrophobization ru
dc.subject Membrane distillation ru
dc.subject Styrene ru
dc.subject Liquid radioactive waste treatment ru
dc.title Liquid low-level radioactive wastes treatment by using hydrophobized track-etched membranes ru
dc.type Article ru


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