Tag:ultraviolet

№9|2014

DRINKING WATER SUPPLY

bbk 000000

UDC 628.166.085

Vasiliak L. M., SMIRNOV A. D.

Potential use of ultrasound in water disinfection

Summary

Ultrasound has been used long enough in engineering and medicine for diagnostics, visualization of underwater objects, surface cleaning and other systems. Using ultrasonic disinfection as a main or additional technology is impractical because of the long exposure time, high energy consumption and lack of regulatory documents. To improve the efficiency of disinfection equipment the manufacturers suggest additional ultrasonic water treatment in combination with oxidi­zers and UV irradiation. The data on possible use of ultrasonics both as an additional disinfection method and method of improving the efficiency of traditional technology from the point of view of the concept of establishing numerous barriers during disinfection is presented. Different types of ultrasonic effect for using in water disinfection systems are considered. Ultrasound provides for the extremely low disinfection efficiency compared to other traditional technologies, therefore it is not used as an independent method. Ultrasonic water treatment improves the efficiency of oxidation technologies. Combined action of ultrasonics and UV irradiation does not have any synergistic effect. For natural water and effluent after treatment according to the operating standards the standard UV dosages are sufficient to ensure meeting the mic­robiological standards. Additional ultrasonic treatment is advisable under special conditions. Quartz sleeves can be well cleaned with mechanical systems and chemical wash which is used by all the world leading manufacturers. Due to the particular hazard of ultrasonic contact impact on humans the process of ultrasonic treatment shall completely eliminate such potential effect.

Key words

, , , , , ,

 

№7|2011

POTABLE WATER SUPPLY

bbk 000000

UDC 628.16/.31.085

IVANOV A. S.

Determination of the Minimal Efficient Doze of UV-Irradiation

Summary

The process of study of water for optimal and valid choice of power of the ultraviolet irradiation system is described. The effectiveness of water treatment by ultraviolet irradiation depending on the content of suspended particles in water is shown. A diagram of the dependence of performance of ultraviolet disinfection on the water transmission coefficient is presented. The necessity of conduction of the preliminary model ultraviolet irradiation and drawing up of the conclusion before the delivery of equipment to the real object of the customer is substantiated.

Key words

, , , ,

 

№5|2012

WATER AND WASTEWATER COMPANIES (VODOKANALS) IN RUSSIA

bbk 000000

UDC 628.17.001.4

Kostyuchenko S. V., Khrenov K. E., Khramenkov S. V., Filatov N. N., Glinik A. I., Kvalvasser A. I., Koudryavtsev N. N., Zhoukov V. I., Petrova O. N., Parilov P. S.

The experience of UV equipment operation at the Lyubertsy Wastewater Treatment Facilities in Moscow

Summary

The experience of the ultraviolet equipment operation for effluent disinfection at the Lyubersty wastewater treatment facilities in Moscow is presented. The modular design of UV equipment provided for establishing large-scale facilities with minimum footprint for UV-disinfection of municipal effluents (1–3 million m3/day capacity and higher). The high performance is ensured by the unique UV-modules with specially designed superpower bactericidal low pressure lamps supplemented by numerous systems of monitoring, control and energy saving. Equipping the entire wastewater treatment facilities with UV disinfection modules will ensure significant improvement of the environmental and sanitation-and-epidemiological conditions of the Moskva and Pekhorka Rivers.

Key words

, , , , ,

 

№4|2019

ENVIRONMENTAL PROTECTION

bbk 000000

UDC 628.166

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

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

Summary

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 2.1.4.1074-01-01, 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 2.1.5.980-00 (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.

Key words

, , , , , ,

 

№1|2010

PROBLEMS, PERSPECTIVES

bbk 000000

UDC 628.162/.163

Pavlov A. A., Dziminskas Ch. A., Kostyuchenko S. V., Zaytseva S. G.

Modern Technologies of Potable Water Preparation at the Sludinskaya Waterworks of Nizhny Novgorod

Summary

It is told about introduction, for the first time in Russia, of modern technologies of preparation of potable water at the Sludinskaya waterworks of Nizhny Novgorod: chlorammonization, ozonization, optimal system of coagulation, UV-disinfection that has allowed to optimize operational costs, to minimize negative by-effects and to provide high quality of potable water.

Key words:

, , , , , , ,

 

№3|2018

WASTEWATER TREATMENT

bbk 000000

UDC 628.166

Tkachev A. A., Baranov V. L., Piskareva V. M.

Comparative assessment of the operating expenditures for wastewater disinfection with the use of chlorination and UV-technology

Summary

Protection of drinking water sources has been the most important comprehensive task. The state of the surface water bodies is determined to a large extent by wastewater flow in them that should be epidemiologically safe according to the RF legislation. The use of ultraviolet irradiation has been the most environmentally and economically efficient disinfection method. To provide for the assessment of the economic efficiency of UV-disinfection technology five operating wastewater treatment facilities of different capacity were considered. The comparison of the annual operating expenditures for chlorination (exclusively of the expenditures for dechlorination and charge for chlorine and chrloorganic compounds discharge) and UV-irradiation was carried out. The studies showed that operating UV-disinfection units were more cost-effective compared to operating chlorination units at the treatment facilities of different capacity.

Key words

, , , , , ,

 

№6|2012

WATER AND WASTEWATER COMPANIES (VODOKANALS) IN RUSSIA

bbk 000000

UDC 628.31.085

Kostyuchenko S. V., Khrenov K. E., Khramenkov S. V., Streltsov S. A., Filatov N. N., Kvalvasser A. I., Koudryavtsev N. N., Volkov S. V.

The construction of the world biggest effluent disinfection facilities at the Kouryanovo wastewater treatment plant in Moscow

Summary

The drivers for choosing UV-radiation as a basic technology of effluent disinfection at the Kouryanovo and Lyubertsy wastewater treatment facilities are presented. The proven experience of UV-disinfection plant operating at the second line of the Novo-Lyubertsy wastewater treatment facilities gave rise to the next stage of introducing the given disinfection method at the Kouryanovo wastewater treatment facilities. In the course of designing it was decided to retrofit UV-disinfection plant into the existing elevation layout of the treatment facilities by using open-channel UV-plants with vertical lamp position. The specific features of the treatment facilities operation and the condition of the discharge canal also took into account.

Key words

, , , , ,

 

№1|2012

WASTEWATER TREATMENT

bbk 000000

UDC 628.316.6

SMIRNOV A. D., Bivalkevich A. I., Strelkov A. K., Breslov B. E.

Efficiency and economic expediency of the industrial methods for wastewater disinfection

Summary

Technical and economic assessment of municipal and industrial wastewater disinfection methods is given. At present the method of UV-disinfection with the use of low pressure amalgam lamps is recognized from both technical and economic points of view as a most acceptable method widely used all around the world. UV disinfection ensures most efficient inactivation of pathogenic microorganisms including chlorine-tolerant (viruses) present in effluents. UV irradiation of wastewater is not accompanied with formation of by-products that could produce negative impact on living organisms and human health, i. e. this method is both environmentally and hygienically safe.

Key words

, , , , , ,

 

mvkniipr ru 

Российская ассоциация водоснабжения и водоотведения

WST19 200x300

Конференция итог

VAK2