UDC 628.166
DOI 10.35776/VST.2026.03.01

Vil’k Mikhail, Рахманин Ю. А., Strelkov Aleksandr, SHVETSOV V. N.

On the need for a radical modernization of water treatment facilities in the context of meeting the requirements of the sanitary and hygienic legislation

Summary

The need for a radical modernization of water treatment facilities in the Russian Federation in light of the tightening requirements of the sanitary and hygienic legislation is substantiated. An analysis of new standards (SanPiN 1.2.3685-21) is conducted, with special attention paid to the significant reduction in maximum permissible concentrations for a range of chemical (residual aluminum, total organic carbon, disinfection by-products of chlorination and ozonation) and microbiological indicators (including chlorine- and ozone-resistant cysts and oocysts of pathogenic protozoa and viruses). It is shown that the simultaneous achievement of both chemical and microbiological standards using existing traditional treatment schemes becomes practically impossible without revising the role of primary and secondary oxidation and introducing additional non-chemical stages of purification and disinfection. Multi-barrier technological schemes successfully implemented in major cities of Russia (Moscow, St. Petersburg, Cherepovets, Nizhny Novgorod) and worldwide (New York, Paris, Helsinki) are considered in depth. The key feature of these schemes is the effective combination and redistribution of roles between chemical (ozonation, chlorination) and physical (UV irradiation, membrane filtration, sorption) methods of purification and disinfection. This approach provides for minimizing the formation of toxic disinfection by-products, ensuring reliable removal of resistant microorganisms, and adapting systems to the variable quality of source water, especially for surface water sources. The conclusion is drawn that the step-by-step modernization of water treatment facilities with the introduction of multi-barrier technologies is not only a mandatory condition for meeting the new sanitary requirements but also a strategic direction for enhancing the environmental and epidemiological safety of drinking water supply under the conditions of anthropogenic impact and climate change.

Key words

ultra-violet irradiation , modernization , potable water quality , membrane technology , water treatment facilities , sanitary regulations and standards , multi-barrier disinfection , disinfection by-products

For citation: Vil’k M. F., Rakhmanin Iu. A., Strelkov A. K., Shvetsov V. N. On the need for a radical modernization of water treatment facilities in the context of meeting the requirements of the sanitary and hygienic legislation. Vodosnabzhenie i Sanitarnaia Tekhnika, 2026, no. 3, pp. 4–13. DOI: 10.35776/VST.2026.03.01. (In Russian).

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REFERENCES

1. Тульская Е. А., Рахманин Ю. А., Жолдакова З. И. Обоснование показателей безопасности для контроля за применением химических средств обеззараживания воды и необходимости гармонизации их с международными требованиями // Гигиена и санитария. 2012. № 6. С. 88–91.
   Tul’skaia E. A., Rakhmanin Iu. A., Zholdakova Z. I. [Justification of safety indicators for monitoring the use of chemical water disinfectants and the need to harmonize them with international requirements]. Gigiena i Sanitariia, 2012, no. 6, pp. 88–91. (In Russian).
2. Waller K. et al. Trihalomethanes in Drinking Water and Spontaneous Abortion. Epidemiology, 1998, v. 9, no. 2, pp. 134–140.
3. Helte E., Söderlund F., Säve-Söderbergh M., Larsson S. C., Åkesson A. Exposure to Drinking Water Trihalomethanes and Risk of Cancer: A Systematic Review of the Epidemiologic Evidence and Dose-Response Meta-Analysis. Environmental Health Perspectives, 2025 Jan. 133(1):16001. DOI: 10.1289/EHP14505.
4. Технический справочник по обработке воды. Degrémont. В 2 т. Т. 2. – СПб.: Новый журнал, 2007.
   Tekhnicheskii spravochnik po obrabotke vody. Degrémont [Technical handbook on water treatment. Degrémont. In 2 v., v. 2. Saint-Petersburg, Novyi Zhurnal Publ., 2007].
5. Рыжова И. Н., Михайлова Р. И., Растянников Е. Г. Гигиеническая оценка летучих галогенсодержащих соединений в хлорированной воде: Сборник материалов международного симпозиума «Экология человека и медико-биологическая безопасность населения», 2005.
   Ryzhova I. N., Mikhailova R. I., Rastiannikov E. G. [Hygienic audit of volatile halogenated compounds in chlorinated water]. Book of reports of International Symposium «Human Ecology and Medical and Biological Safety of the Population», 2005. (In Russian).
6. Кинебас А. К. Внедрение обеззараживания воды гипохлоритом натрия и ультрафиолетовым облучением в системах водоснабжения и водоотведения Санкт-Петербурга // Водоснабжение и санитарная техника. 2005. № 12, ч. 1. С. 16–20.
   Kinebas A. K. [Introduction of water disinfection with sodium hypochlorite and ultraviolet irradiation in water supply and wastewater disposal systems of St. Petersburg]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2005, no. 12, p. 1, pp. 16–20. (In Russian).
7. Жолдакова З. И., Тульская Е. А., Костюченко С. В., Ткачев А. А. Ультрафиолетовое обеззараживание как элемент многобарьерной схемы очистки вод для защиты от патогенов, устойчивых к хлорированию // Гигиена и санитария. 2017. № 96 (6). С. 531–535. DOI: 10.18821/0016-9900-2017-96-6-531-535.
   Zholdakova Z. I., Tul’skaia E. A., Kostyuchenko S. V., Tkachev A. A. [ Ultraviolet disinfection as an element of a multi-barrier water treatment system to protect against chlorination-resistant pathogens]. Gigiena i Sanitariia, 2017, no. 96 (6), pp. 531–535. DOI: 10.18821/0016-9900-2017-96-6-531-535. (In Russian).
8. Review of the New York City Watershed Protection Program. National Academies of Sciences, Engineering, and Medicine. Washington, DC: The National Academies Press, 2020. DOI: 10.17226/3238.
9. Ventresque C., Gisclon V., Bablon G., Chagneau G. An outstanding feat of modern technology: the Mery-Sur-Oise Nanofiltration Treatment Plant (340,000 m3/d). Desalination, 2000, 16 р.
10. Toivanen E. Experiences with UV disinfection at Helsinki water. IUVA News, 2000, v. 2, is. 6, pр. 4–8.
11. Vahala R. Two-Step Granular Activated Carbon Filtration in Drinking Water Treatment. Helsinki University of Technology, 2002, 77 р.
12. Дзиминкас Ч. А., Костюченко С. В. Консолидация современных технологий при подготовке питьевой воды на Слудинской водопроводной станции г. Нижний Новгород // Водоочистка. Водоподготовка. Водоснабжение. 2011. № 3. С. 52–60.
    Dziminkas Ch. A., Kostyuchenko S. V. [Aggregation of modern technologies in the drinking water purification at the Sludinskaia water treatment plant in Nizhny Novgorod]. Vodoochistka. Vodopodgotovka. Vodosnabzhenie, 2011, no. 3, pp. 52–60. (In Russian).