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UDC 628.166

Pokhil Yu. N., Novoshintsev V. N., Kamaletdinov A. R., Kostyuchenko S. V., Tkachev Andrei, SMIRNOV A. D.

Use of UV-disinfection in water supply and wastewater disposal systems of Novosibirsk


Vodokanal of the city of Novosibirsk has been one of the first water and wastewater utilities in large Russian cities to completely switch to the disinfection of drinking water and wastewater with ultraviolet irradiation. Advanced multi-barrier technologies for the preparation of drinking water (combined use of UV disinfection and chlorination) provided for obtaining safe drinking water of high quality. UV units introduced at the pumping-filtration stations (PFS-1 and PFS-5) of the city provide for the reliable disinfection of filtered purified water up to the requirements of SanPiN, perform a barrier role against pathogenic microorganisms of bacterial, viral and parasitic nature. UV equipment installed at the municipal wastewater treatment facilities with a total capacity of 600 thousand m3/day ensures the required degree of disinfection in accordance with SanPiN (radiation dose not less than 40 mJ/cm2). The UV-disinfection station built on the basis of tray-type vertical type equipment manufactured by «LIT» SPA is installed in three concrete flow channels. To improve the energy efficiency of the UV disinfection station operating under the conditions of uneven incoming wastewater flow during the day a system for the UV irradiation rate control by signals from an external flow meter and a tau meter measuring the UV transmittance was retrofitted. Ultraviolet disinfection of effluent does not affect the Ob River. Used for several years UV disinfection of wastewater and up to now is the best available technology.

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