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UDC 628.16.004.69
Valuyskikh I. V., Mamaev V. V., Zhagin S. V., Boldyrev Viacheslav Viktorovich, Smirnov V. P.
Introduction of Up-to-Date Technologies of Potable Water Treatment
Summary
The modern conception of water treatment has been realized at the pumping-filtration station of 250 ths m3/day output supplying potable water to the left-bank part of the city of Novosibirsk. The scheme of water treatment includes preliminary water ammonization, the supply of coagulant (aluminum oxychloride) and flocculant, preliminary chlorination, mixing in a mixer of instantaneous action, preliminary flocculation, clarification in horizontal settling tanks, filtration at high-rate filters, secondary chlorination, UV-disinfection. The use of several technologies and technical decisions in the scheme of water treatment aimed at the ensuring of epidemiological safety and high quality of water makes this scheme exclusively reliable and universal.
Key words
chloramines , clarification , filtration , ultra-violet disinfecting , flocculant , flocculator , mixer , ammonization
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UDC 628.35.002.237
Strelkov A. K., Shuvalov M. V., Astrakhantsev D. V., Dudarev V. A., Stepanov S. V., Tarakanov D. I.
Conception of Reconstruction of City Sewerage Treatment Facilities of Samara
Summary
The results of years of research aimed at improving the quality of wastewater treatment at the city sewerage treatment facilities of Samara are presented. The technology of the Capetown University is the most acceptable for the further reconstruction of facilities due to the low concentration of organic substances in clarified wastewater and a high ratio of biogenic elements concentration to biochemical consumption of oxygen. At present the studies of biomembrane treatment with the use of hollow fibre membranes and equipment of General Electric Co. are planned. For that it is necessary to build a screens building and to place also the unit of UV-disinfection of treated wastewater. The cost of reconstruction of the treatment facilities will be 11,8 milliards of roubles.
Key words
biological treatment , ultra-violet disinfecting , sewerage treatment facilities , grate , membrane bioreactor
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UDC 628.16/.31.085
Rudnikova G. I., Zelenin A. M.
Water Disinfection Using the UV-Irradiation at Water Treatment Facilities of the City of Angarsk
Summary
For the purpose of improving the barrier function with respect to viruses, parasites and water bacteria at water treatment facilities of Angarsk the station of potable water UV-disinfection was put into operation in 2009. The station’s equipment is located in the building of main facilities block before the vertical mixers. From the first days of operation the high efficiency of the UV-disinfection method was established. The analyses results show the complete inactivation of all water microorganisms and dependence of intensity of lamps radiation on physicochemical properties of river water as well. For the purpose of eliminating this dependence the alternative scheme of water feed is offered: treated water after the filter is delivered to UV-disinfection plants instead of river water.
Key words
potable water , chlorination , turbidity , ultra-violet disinfecting , water treatment , microorganisms , inactivation
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UDC 628.16
Pokhil Yu. N., Bagaev Iurii, Novoshintsev V. N.
Preparation of high quality water in the city of Novosibirsk
Summary
The current concept of water treatment is based on the simultaneous sustainable use of several methods, technologies and technical solutions that provide for the high water quality and multibarrier protection. Such approach is implemented at the filtration pumping stations operated by «Gorvodokanal» of Novosibirsk, MUE. Water treatment is carried out following the traditional flow scheme: horizontal settling tanks and rapid filters with chlorine disinfection. Lately the water treatment technology has been improved according to the new regulatory requirements and on the basis of the conducted research. The stages of improving water treatment technologies at the filtration pumping stations operated by «Gorvodokanal» of Novosibirsk, MUE are described. The availability of several technologies and technical solutions focused on ensuring the epidemiological safety and high water quality in the process flow scheme not only makes this scheme exclusively sustainable and versatile but also minimizes the drawbacks typical for each of the methods. The introduction of the described technologies and technical solutions provided for achieving the maximum efficiency of water treatment, optimizing the operation expenses, reducing the negative by-effects and ensuring high drinking water quality. In case of emergency (in case of water source pollution) the availability of several technologies will help to reduce the risks of water quality deterioration at the treatment facilities.
Key words
ultra-violet disinfecting , water treatment , pumping-filtration station , chlorammoniation , innovative technical developments , multibarrier protection
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UDC 628.166.085
Shuvalov M. V., Kirsanov A. A., Shuvalov S. V., Boldenkov V. S.
Designing and Construction of UV-Disinfection Stations at Objects of ME Samaravodokanal
Summary
Advantages of the UV-disinfection technology of natural and waste water in comparison with chlorination and ozonation are considered. According to the results of technological research and experimental-industrial tests it is established that the application of UV-irradiation at the stage of primary disinfection will make it possible to create conditions for the adjustment of the flow chart of chlorination with the decrease of the doses of chlorine used. Specialists of ME Samaravodokanal in cooperation with employees of the Water Supply and Wastewater Disposal Chair of the Samara State University of Architecture and Civil Engineering and Scientific-Production Company EKOS Ltd. have developed the project documentation for construction of UV-disinfection stations at two largest objects of water supply and wastewater disposal of Samara, pumping-filter stations.
Key words
wastewater , ultra-violet disinfecting , pumping-filtration station , natural water
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UDC 628.161
GERASIMOV M. M., SMIRNOV A. D., Davlyaterova R. A., Peremykina L. A., Smagin V. A.
Advanced water treatment technologies in the city of Tchelyabinsk
Summary
The use of advanced technologies in the process of Shershnyovsky storage reservoir water treatment for domestic water supply of Tchelyabinsk and satellite-towns is described. Introducing comprehensive multi-stage water disinfection technology at the Tchelyabinsk water treatment facilities conforms fully to the international advanced trends in water treatment practice.
Key words
chlorination , ultra-violet disinfecting , coagulant , flocculant , pollutants , water treatment technique , powdered sorbent , barrier role of the treatment facilities
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