Vol. 9 pp. 720-740

O. U. Gapurova, V. B. Naumovsky, I. G. Galiulin, I. T. Garipov, R. R. Khaidarov

TECHNOLOGICAL ASPECTS OF CREATING BIOCIDAL MEMBRANES FOR WATER PURIFICATION AND DESALINATION

Annotation. The technological aspects of creating biocidal reverse osmosis membranes for the purification and desalination of brackish artesian, wastewater, and circulating waters are considered. Three methods of surface modification of industrial polyamide membranes have been developed: adsorption of metal ions followed by reduction with sodium borohydride; formation of a metal complex with a cationic polyelectrolyte on the membrane surface; application of pre-synthesized colloidal particles. Four samples of membranes containing nanoparticles of silver, copper, copper oxide, and bimetallic Cu–Ag nanoparticles were obtained. All modified samples exhibited a pronounced bactericidal effect; the best combination of biocidal activity and preservation of transport characteristics is provided by membranes with Cu–Ag nanoparticles (a decrease in productivity of no more than 1%). On their basis, pilot-industrial samples of a block-modular desalination system were manufactured and introduced at a number of facilities in the Republic of Uzbekistan.

Keywords: reverse osmosis, polyamide membrane, biofouling, biofilm, silver and copper nanoparticles, bimetallic nanoparticles, polyhexamethylene biguanide, polyethyleneimine, water desalination.

For citation: Gapurova O.U., Naumovsky V.B., Galiulin I.G., Garipov I.T., Khaidarov R.R. [Technological aspects of creating biocidal membranes for water purification and desalination]. Upravlenie tekhnosferoi, 2026, vol. 9, issue 3, рр. 720 – 740. DOI: 10.35634/UdSU.2026.76.71.010

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About the Authors

Gapurova Olga Urumbaevna

Ph.D., Junior Researcher, Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, 100214, Tashkent, Uzbekistan.

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Naumovsky Valery Borisovich

junior researcher, Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, 100214, Tashkent, Uzbekistan.

Galiulin Ildar Galievich

junior researcher, Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, 100214, Tashkent, Uzbekistan.

Garipov Ilnur Tagirovich

junior researcher, Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, 100214, Tashkent, Uzbekistan.

Khaidarov Renat Rashidovich

Candidate of Physics, Head. Laboratory of Interdisciplinary Technologies, Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, 100214, Tashkent, Uzbekistan.

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