Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science


  • WATER SUPPLY, SEWERAGE, BUILDING SYSTEMS OF WATER RESOURCES PROTECTION
  • The Use Of Silver And Copper Colloid For Disinfection Of Water In Cooling Towers
  • UDC 628.166-926.57
    doi: 10.33622/0869-7019.2026.03.84-90
    Roman A. GURDIN1, rgurdin@lan.spbgasu.ru
    Andrey N. BELYAEV1, belyaev71@list.ru
    Yuriy A. FEOFANOV1, ufeofanov@rambler.ru
    Vladimir V. SHABALIN1, vvshabalin@mail.ru
    Nikolay A. CHERNIKOV2, nika_pgups@mail.ru
    1 Saint Petersburg State University of Architecture and Civil Engineering, 2-ya Krasnoarmeyskaya ul., 4, St. Petersburg 190005, Russian Federation
    2 Emperor Alexander I St. Petersburg State Transport University, Moskovskiy prospekt, 9, St. Petersburg 190031, Russian Federation
    Abstract. The effectiveness of a combined method of disinfection of water in cooling towers based on the use of silver and copper colloids synthesized by electrolysis, hydrogen peroxide and a sand filter is evaluated. It has been shown that this combination will provide a synergistic and prolonged antimicrobial effect. The study was conducted over eight months and included six stages. A colloid containing ions and nanoscale metal particles was generated in a flow mode using an electrolyzer with alternating electrode polarity. The analysis of the source water showed a high level of microbiological contamination. The introduction of silver and copper colloid did not lead to the expected decrease, which required the addition of an oxidizing agent, hydrogen peroxide. The subsequent installation of a sand filter saturated with keloid during operation made it possible to achieve a steady decrease in the concentrations of target microorganisms until the end of the observation. Regression analysis showed a negative correlation between the time of application of the combined system and the level of contamination, that is, the proposed scheme demonstrated effectiveness for long-term control of biofouling.
    Keywords: water disinfection, cooling towers, silver and copper colloidal systems, electrochemical synthesis, hydrogen peroxide, modified sand filter
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  • For citation: Gurdin R. A., Belyaev A. N., Feofanov Yu. A., Shabalin V. V., Chernikov N. A. The Use of Silver and Copper Colloid for Disinfection of Water in Cooling Towers. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2026, no. 3, pp. 84-90. (In Russ.). doi: 10.33622/0869-7019.2026.03.84-90

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