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

被引：26

作者：

Zdorovets, M. V. ^{[1
,2
,3
]}

Yeszhanov, A. B. ^{[1
,2
]}

Korolkov, I. V. ^{[1
,2
]}

Guven, O. ^{[5
]}

Dosmagambetova, S. S. ^{[1
]}

Shlimas, D. I. ^{[1
,2
]}

Zhatkanbayeva, Zh. K. ^{[1
]}

Zhidkov, I. S. ^{[3
]}

Kharkin, P. V. ^{[2
]}

Gluchshenko, V. N. ^{[2
]}

Zheltov, D. A. ^{[2
]}

Khlebnikov, N. A. ^{[3
,4
]}

Kuklin, I. E. ^{[3
]}

机构：

[1] LN Gumilyov Eurasian Natl Univ, Satpaev Str 5, Nur Sultan 010008, Kazakhstan

[2] Inst Nucl Phys, Ibragimov Str 1, Alma Ata 050032, Kazakhstan

[3] Ural Fed Univ, Mira Str 19, Ekaterinburg 620002, Russia

[4] UB RAS, Inst Solid State Chem, 91 Pervomaiskaya St, Ekaterinburg 620990, Russia

[5] Hacettepe Univ, Dept Chem, TR-06800 Ankara, Turkey

来源：

PROGRESS IN NUCLEAR ENERGY | 2020年 / 118卷

关键词：

Track-etched membranes; Hydrophobization; Membrane distillation; Styrene; Liquid radioactive waste treatment; SEAWATER DESALINATION; ELECTROSPUN MEMBRANE; WATER TREATMENT; DISTILLATION; REMOVAL; RECOVERY; SURFACE; IONS; ACID;

D O I：

10.1016/j.pnucene.2019.103128

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

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 degrees 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 (FFIR), 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 Co-60, Cs-132, and Am-241 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.

引用

页数：9

共 43 条

[1] A novel method for the synthesis of polystyrene-graft-silica particles using random copolymers based on styrene and triethoxyvinylsilane [J].