DOI: https://doi.org/10.30838/J.BPSACEA.2312.250918.59.197

Investigation of dynamic membranes with biocidal waves in water treatment with high content of organic substances

N. P. Nechitaylo, E. V. Nesterova, E. N. Kosyuk, D. A. Reshetniak, Ya. S. Nesterov

Abstract


Purpose.Research of dynamic membranes with biocidal grafting in the treatment of waters with a high content of organic substances.Technique. For the research, was used a semi-industrial plant that was designed to test the applicability of the membrane modification method in the water purification process. In the experiment were used three parallel-working membrane modules, each of them has an active area of 5 m2. Modification of the two modules is carried out according to the standard scheme by treatment with aluminum oxychloride. The third membrane is treated with aluminum oxychloride and a mixture of biocides.Results.The data obtained as a result of the experiment showed the possibility of using this technology in the process of water purification. However, one of the limitations was the development of biofilms on the membrane surface. Biofilms led to a decrease in the filtering ability. To reduce the influence of biofilms in the membrane-forming layer, biocidal grafts were introduced. These vaccinations made it possible to obtain a membrane with stable filtering properties and to reduce the effect of biomass on the process of membrane contamination, as evidenced by the experiment. Practical significance. The creation of a dynamic layer with biocidal grafting will improve the efficiency of water purification from surface water sources

Keywords


dynamic membrane; biocide of non-oxidative action; bio-contamination

References


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GOST Style Citations


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Kramer J. F. The solution to reverse osmosis biofouling / J. F. Kramer, D. A. Tracey // Proceedings of IDA World Congress on Desalination and Water Use, Abu Dhabi, Saudi Arabia, November 18-24, 1995 / оrganized by the International Desalination Association (IDA). – Abu Dhabi, 1995. – Vol. 4. – P. 33–44.

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