Tag:sewerage treatment facilities

№1|2014

WASTEWATER TREATMENT

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UDC 628.31:614.71

Kolycheva M. A.

Controlling malodorous emissions of wastewater treatment facilities

Summary

Wastewater treatment facilities feature malodorous emissions into the atmosphere that result from the process of wastewater treatment and contain mercaptans, hydrogen sulfide, ammonia, amines etc. The preventive measures against negative impact of malodorous emissions on the urban development include two stages: collection of the polluted emissions and their subsequent purification. Preventing emissions into the atmosphere and collecting gases are carried out by installing covers on the aeration facilities. The advanced and technically perfect method of air purification is used in «Iatagan» gas converters. The principle of «Iatagan» units operation is based on the combined effect of bulk barrier-streamer discharge and ozone on the molecules of hazardous and malodorous gases. The use of «Iatagan» gas converters is the best solution of the air purification problem at the wastewater treatment facilities.

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№9|2010

Ekoton: 15 Years of Innovations

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UDC 628.32

Shtonda Yu. I., Zubko A. L.

Intensification of Wastewater Treatment at Small Treatment Facilities of the Crimea

Summary

The problem of treatment of polluted and insufficiently treated wastewater of small objects and settlements of the Crimea is elucidated. Data on intensification of operation of small sewerage treatment facilities of the settlement of Kanaka (Alushta District) are presented. To increase the output of small sewerage treatment facilities and efficiency of wastewater treatment the flowcharts with the replacement of physically depreciated and morally obsolete equipment are offered. Reasonability of the use of mechanized grilles and aeration systems with aerators АПКВ-120 manufactured by the scientific and production firm Ekoton is considered. The successful experience of reconstruction of sewerage treatment facilities with increase of their output and improvement of efficiency of wastewater treatment as well as construction of the new facilities using power saving technologies for small objects and settlements have allowed the SPF Ekoton to realize a number of projects at the territory of the Crimea.

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№9|2021

WASTEWATER TREATMENT

DOI 10.35776/VST.2021.09.05
UDC 628.345.1

Egorova Yu. A., Stepanov S. V., Nesterenko O. I., Strelkova T. A.

Study of the chemical removal of phosphorus at the municipal wastewater treatment facilities of the Samara urban district

Summary

The parameters of the chemical removal of phosphorus from wastewater in Samara have been determined. The studies were carried out by the method of trial coagulation of raw wastewater, primary effluent and mixed liquor from the aeration tanks. It was found that at the same doses of the chemical, the enhanced removal of phosphorus occurs from the sludge mixture. While using aluminum sulfate, the removal of phosphorus phosphates was enhanced by 0.3–1.6 mg/l more than while adding Aqua-Aurat-30TM aluminum polyoxychloride, depending on the initial concentrations. The concentration of residual aluminum in the effluent while using Aqua-Aurat-30TM was on average 8% lower than while using aluminum sulfate – 0.168–0.221 mg/l versus 0.173–0.274 mg/l. Comparative results of the chemical coagulation with the use of flocculants and without them showed that additional dosing flocculant did not result in an increase in the efficiency of phosphorus removal. It was determined that to achieve above 85% treatment efficiency at a phosphorus-phosphate concentration in the mixed liquor of 3.7–5.2 mg/l, a 1.3–1.8-fold excess of aluminum sulfate was required, and at lower concentrations of 1.23– 1.87 mg/l, this efficiency was achieved only with a 3.1–5-fold excess of the chemical. The research results were used in the project of upgrading a tertiary treatment plant at the Samara wastewater treatment facilities, that provided for the chemical removal of phosphorus in addition to the enhanced process of biological removal of phosphorus. The accepted calculated dose of aluminum sulfate 10 mg/l for a commercial product will reduce the concentration of phosphates after the main stage of biological treatment from 0.53 to 0.2 mg/l.

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№12|2018

WASTEWATER TREATMENT

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UDC 628.315.2

Shuvalov M. V., Tarakanov D. I.

The history of the Samara wastewater treatment facilities project
designed by engineer V. G. Lindlei

Summary

«Drainage of Samara» project was designed by engineer V. G. Lindlei in 1907. Technical and process solutions approved in the project were at that time most advanced. Domestic, industrial wastewater and surface runoff was treated at «designated» facilities that included grit chambers and «moving screens» with a bar spacing of 5 mm. The removal of captured pollutants was completely automated. Extraction of other pollutants was supposed to execute at the «treatment facilities». For this purpose covered horizontal settling tanks with hydraulic sludge removal systems were designed. Biological wastewater treatment was to be carried out in oxidation basins (total surface area about 16 hectare) filled with feed. For wastewater transportation collectors of piriform 1400×1750 mm cross section were planned for construction. According to literary resources at those times wastewater treatment facilities were only in four cities; at that in Odessa, Kiev and Moscow they were represented by sewage fields, and the only treatment facilities with biofilters were built in Tsarskoe Selo.

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№9-2|2011

WASTEWATER TREATMENT

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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.

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№6|2019

WASTEWATER TREATMENT

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UDC 628.35

Kevbrina M. V., Gavrilin A. M., Dorofeev A. G., KOZLOV M. N., Aseyeva V. G.

Best available technologies of wastewater treatment:  implementation experience of «Mosvodokanal» JSC

Summary

Owing to the transfer to process standardization from 2019 (Federal Law No. 219-FZ) natural resource users are bound to introduce the best available technologies. Advanced technologies of municipal wastewater treatment ensuring the removal of nitrogen and phosphorus have been used in Russia at less than 10% of the wastewater treatment facilities. When transferring to process standardi­zation many water utilities will face the problem of upgrading wastewater treatment facilities. Successful practical experience of water utilities where BATs have been already used at wastewater treatment facilities will be useful for choosing the optimal process flow scheme. The introduction of advanced wastewater treatment methods has been a priority task for «Mosvodokanal» JSC. For a long period the company has developed and adapted to the conditions of the Moscow wastewater treatment facilities the process flow scheme of wastewater treatment with the removal of nutrients (nitrogen and phosphorus) which is the best available technology. This made it possible to introduce this technology at the Lyuberetskie and Kuryanovskie wastewater treatment facilities – the largest and extremely large-scale facilities as well as at small- and mid-scale wastewater treatment plants in Minzag and Shchapovo settlements (Prefecture of Troitsky and Novomoskovsky Administrative Districts, Moscow). Experts of «Mosvodokanal» JSC developed a pre-design concept of the reconstruction of the aeration tanks at the treatment facilities of Cherepovets and the local treatment facilities of the Optina Pustyn monastery (Kozelsk, Kaluga Region) with the introduction of nutrients removal technology. The practical experience gained in «Mosvodokanal» JSC shows that the best available technologies have been developed, can be introduced and operate successfully.

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№8|2020

EQUIPMENT MAINTENANCE SERVICE

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UDC 628.32/.35

Meshengisser Yu. M., Fomin I. I., Belen’kii Gleb

Advanced developments of Ecopolymer plant for wastewater treatment facilities

Summary

Ecopolymer company is well known in the market as a manufacturer of aeration systems. Over the past five years the company has expanded the product range adding a metal product line, upgraded production by installing advanced intelligent machines, and increased the staff of the design engineering bureau. The article describes the equipment, the production of which has been mastered over the past five years. The company strives to produce not individual types of products, but equipment packages designed to carry out a full cycle of process operations supported by the proprietary control systems. To date, the production facilities provide for the release of a full range of equipment for mechanical wastewater treatment – coarse and fine screens, conveyors and thickening presses for screenings, sand separators, grinders, etc. Particularly noteworthy is the innovative system for collecting floating substances in primary settling tanks in combination with the traditional scraper system. The produced sludge pumping systems have no rival among domestic manufacturers. Also, in addition to the well-known aeration systems, Ecopolymer Trade and Production Enterprise has developed AQUA-TOP 500, a new aeration system with a working capacity of 20–25 m3/h, that is equivalent to four 9” aerators.

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№9|2010

Ekoton: 15 Years of Innovation

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UDC 628.336.57

Shtonda Yu. I., Zubko A. L.

Dewatering of Municipal Wastewater Sludge at Mobile Compact Complexes

Summary

The actual problem of reduction of volumes of wastewater sludge and areas allotted for them accordingly is considered. Specific complications at sewerage treatment facilities of the health resort cities of the water areas of the Black Sea and the Sea of Azov connected with significant seasonal changes of volumes of incoming wastewater are described. The original economic method of sludge dewatering using the compact complex on the basis of a belt press filter ПЛ-6K manufactured by the SPF Ekoton is offered. The use of the compact complex of mechanical dewatering of sludge will make it possible to dewater both the sludge from municipal treatment facilities and from sewerage treatment facilities of groups of nearby settlements without necessity to construct separate shops of mechanical dewatering or transportation of large volumes of sludge to stationary shops.

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№3-1|2013

ENVIRONMENTAL PROTECTION

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UDC 628.32:502.36

Il'in Iu. A., IGNATCHIK V. S., Ignatchik S. Iu.

Determining the environmental safety indicators of wastewater treatment facilities

Summary

A method of evaluating the environmental safety indicators of wastewater treatment facilities is presented. The method includes confirmatory analysis with the help of computer simulation of process technologies applied at the wastewater treatment complexes that consist of different purpose blocks in order to evaluate emergency outages affecting the effluent quality. The risk of possible failures of separate units that are parts of the process layout as well as the degree of environmental impact on the entire treatment facilities is determined.

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№1|2011

ENVIRONMENTAL PROTECTION

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UDC 628.349:661.63

KINEBAS A. K., NEFEDOVA E. D., PANKOVA G. A., Rublevskaya O. N., Pirogov A. G., Popova N. I., Klimenko A. I.

The experience of introducing the technology of chemical precipitation of phosphorus: from laboratory tests to industrial-scale operation

Summary

Meeting the latest recommendations of the Helsinki Baltic Marine Environment Protection Commission (HELCOM) calls for the introduction of advanced efficient methods of nutrients removal (mainly phosphorus) from municipal and industrial wastewater. Ferix-3 coagulant was chosen as a chemical. Industrial tests of chemical precipitation of phosphorus at the Kolpino, Kronstadt, Metallstroy settlement wastewater treatment facilities, as well as at the Central wastewater treatment plant, South-West wastewater treatment facilities and North wastewater treatment plant of St.-Petersburg are discussed. Chemical injection points and dosages for additional chemical dephosphorization were chosen depending on the treatment technology, automation level, wastewater composition, stability and irregular incoming flow rate.

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№8|2014

WASTEWATER TREATMENT

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UDC 628.35:004.69

Strelkov A. K., Stepanov S. V., Strelkov D. A., Doubman I. S.

The experience of upgrading wastewater treatment facilities of Zhigulevsk

Summary

The experience of designing, constructing and upgrading wastewater treatment facilities (16,200 m3/day) in Zhigulevsk, Samara Area is described. Prior to the reconstruction the technical condition of the facilities was satisfactory. However, the effluent quality parameters exceeded the maximum permissible levels for BOD, suspended solids, nitrogen compounds, phosphates and oil pro­ducts. The efficiency of primary settling related to BOD5 and suspended solids was about 50% resulting in BODfull: total mineral nitrogen: phosphorus of phosphates ratio changing from 100:12.5:1.7 to 100:21.8:3.16. Despite the deterioration of this primary effluent parameter in the process of nutrients removal it was decided to retain primary settling in the design layout because of the insufficient capacities of the existing aeration tanks. The techno­logy of nitrification-denitrification with anoxic and aerobic zones and chemical phosphorus removal is suggested. The bioreactor capacity was increased 1.5 times by establishing the third process line in addition to the existing ones; besides the construction started from the nitrification-denitrification aeration tank to provide for the sustai­nable effluent quality for the entire reconstruction period.
For tertiary treatment a filter-bioreactor with a brush head was used. Disinfection is carried out by UV-irradiation in a trough-type unit without changing the gra­vity effluent flow. The design documentation was approved by the state expertise of the construction pro­jects. By now a considerable part of the facilities has been constructed and put into operation. The successful experience of Zhigulevsk wastewater treatment facilities reconstruction carried out without interruption of wastewater inflow can be overspread among the similar projects in medium-scale cities of the central part of Russia.

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№8|2022

WASTEWATER TREATMENT

DOI 10.35776/VST.2022.08.04
UDC 628.35

Popov Nikita, Grigor’eva Anastasiia, Zalyotov S. V.

Experience in the reconstruction of the wastewater treatment facilities operated by MUE Teplovodokanal of Pushchino

Summary

In the early 1990s, after the introduction of new regulations for the quality of effluent, as well as due to a significant reduction in the available funding for water supply and wastewater disposal facilities, a tendency arose of a widespread violation of the requirements to the quality of wastewater treatment in the context of the impossibility of improving the situation. With the resumption of the economic growth at the beginning of the 21st century, Russia began to allocate public funds for the reconstruction of large-scale treatment facilities in order to provide for the required level of wastewater treatment by way of retrofitting advanced technologies. The access to financing for the reconstruction of wastewater treatment facilities is possible on the condition that the full-fledged project documentation that has passed the state expert appraisal is available. The experience of reconstructing small-scale wastewater treatment facilities in Pushchino that failed to be included into any budget financing program, is described. With the support and recommendations of relevant organizations and specialists, a list of measures was compiled for the stage-by-stage improvement of the wastewater treatment technology, taking into account the available funding. One of the first stages while implementing the measures was the introduction of the advanced technology for the biological removal of nutrients with the allocation of anaerobic and anoxic zones in traditional aeration tanks with mechanical activated sludge mixing. Russian-made vertical hyperbolic mixers were chosen as mixing devices. After the reconstruction of the first block of aeration tanks combined with the installation of mixers directly by the equipment supplier, the first positive results were obtained, i. e., the achieved indicators for organic substances and nitrogen group compounds were better than the required ones.

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№5|2012

WATER AND WASTEWATER COMPANIES (VODOKANALS) IN RUSSIA

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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.

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№5|2018

ENVIRONMENTAL PROTECTION

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UDC 614.71:613.15

Sabirova Z. F., Budarina O. V., Shipulina Z. V.

Special aspects of substantiating sanitary protection zones
for the municipal wastewater treatment facilities

Summary

A comprehensive hygienic assessment of the municipal wastewater treatment facilities (with a capacity of 73 and 180 thousand m3/day of domestic and industrial wastewater) as sources of the chemical and physical impact on the ambient air and public health is presented. The studies were carried out in a city in the Moscow Area with a population of more than 150 thousand residents. The characteristics of the wastewater disposal system including wastewater treatment technology, standard equipment of the treatment facilities, technical operation parameters, composition and amount of emissions are typical for the Russian small cities including the cities in the Moscow Area with a population of 100–2000 thousand residents. It was stated that the maximum input into the gross emission was given by sludge beds (68%), aeration tanks and secondary settlers of the biological treatment process (12.4 and 5.3%). It is shown that the impact of the chemical and physical factors on the ambient air and public health (following the methodology of the assessment of the noncarcinogenic and carcinogenic effect occurrence) does not exceed the hygienic regulations and permissible risk values. Based on the results of the study a system of criteria that can be recommended for the substantiation of the sanitary protection zones for the wastewater treatment facilities is proposed.

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№3|2022

WASTEWATER TREATMENT

DOI 10.35776/VST.2022.03.06
UDC 628.3

Koulakov A. A.

Estimation of the achievability of the environmental and technological regulations at small wastewater treatment facilities

Summary

The transition of water and wastewater services to technological regulations imposes new environmental requirements for wastewater treatment facilities. The probability of meeting environmental and technological regulations at 117 sites was estimated. For two groups of treatment facilities (midget, small and minor), the achievability of the regulations for suspended solids, BODtotal, nitrogen (ammonium, nitrite, nitrate) and phosphate-phosphorus was determined. The smallest proportion of the facilities could provide for meeting the maximum permissible concentrations of suspended solids (12.2 and 8.8%), phosphate-phosphorus (24.5 and 8.3%) and ammonium nitrogen (12.2 and 9%) in the effluents discharged into water bodies of commercial fishing importance. Meeting the technological regulations for water bodies of category B looks more likely and is 30.6% for ammonium nitrogen, for other indicators – more than 70%.

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№5|2019

WASTEWATER TREATMENT

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UDC 628.356

Kharkina O. V.

Problems of designing biological treatment facilities with nitrogen and phosphorus removal

Summary

Ensuring the quality of effluent to the level of the most stringent regulatory requirements including the maximum permissible concentrations for fishery water bodies is the responsibility not only of engineering companies providing for professionally executed design solutions but also of the customers responsible for correctly compiled technical tasks, professional choice of effective technical and commercial proposals, competent operation of wastewater treatment facilities. The experience of operating wastewater treatment plants using nitrogen and phosphorus removal technologies makes it possible to assert that in this case a professional approach to the selection of contractors and operation on the part of the customers and to the design on the part of the contractors ensures the required quality of effluent. The problems arising at the design stage of wastewater treatment facilities and the choice of technical and commercial proposals are considered. Recommendations for their solution are given. The article is intended both for the process engineers of engineering companies and for the customers of projects who find it difficult to correctly choose the most effective design solution from a large number of proposed technical and commercial proposals.

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№3|2020

WASTEWATER TREATMENT

DOI 10.35776/MNP.2020.03.06
UDC 628.358

Strelkov A. K., Egorova Yu. A., Stepanov S. V., Levin D. I., Doubman I. S., Nikolaev Aleksei

Project for the reconstruction of the tertiary treatment plant
at the wastewater treatment facilities of the city of Samara

Summary

Design solutions implemented by «Samarskie Kommunal’nye Sistemy» LLC on the reconstruction of the tertiary treatment plant of the Samara wastewater treatment facilities were considered and analyzed. The project provides for the chemical removal of phosphorus in addition to biological dephosphotation and filtration of effluents after biological treatment. The chemical phosphorus removal unit has been constructed as a building with a packaged plant inside for the preparation and dosing of aluminum sulfate solution; this layout provides for reducing the heating and ventilation costs of the chemical treatment facilities. The chemical agent is added at twelve points in the sludge mixture flow at the outlet of each aeration tank. The calculated concentration of phosphorus as phosphate in the effluent is 0.2 mg/l; the annual consumption of marketable coagulant is 1545 tons; the purchase unit cost is 0.15 rubles/m3. Tertiary treatment by filtration has been ensured by the reconstruction of eight circular settling tanks with a diameter of 54 m into settler-filters with floating media. Herewith, no construction of new buildings and utilities is required. The calculated concentration of suspended solids in the effluent is 4 mg/l, BODfull – 3 mg l. The specific energy consumption for the operation of filters with floating media is
0.57 Wh/m3, the cost of electricity – 0.0022 rubles/m3.

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№10|2019

ENERGY CONSERVATION

DOI 10.35776/MNP.2019.10.08
UDC 628.356.1:621.61

Iadrishchenskii A. N., Filippova N. N., Bulygin K. A., Kolobova G. I., Gordeichik A. V., Usachev A. P.

Reconstruction of the air blower station at the wastewater treatment facilities in Chita

Summary

The results of the reconstruction of the wastewater treatment facilities in the city of Chita are presented with regard to the system of supplying air to the operating sections of the aeration tanks without replacing the air blower units. The main goal of the reconstruction was energy saving and automation of air supply to the aeration tanks while ensuring sufficient oxygen concentrations in the wastewater biological treatment facilities. To change the capacity of the air blowers the automation system includes two high-voltage frequency converters for the number of blowers in operation. To regulate the air supply eight regulated valves and eight dissolved oxygen sensors (for the number of operating sections) are installed in the sections of the aeration tanks. Energy savings over four months of operation amounted to about 16.4% compared to the same period of previous years.

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№11|2017

WASTEWATER TREATMENT

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UDC 628.35

Obuzdin S. Iu., Gubin D. I.

Reconstruction of the right-bank wastewater treatment facilities
of Irkutsk

Summary

Practically in all Russian cities the deterioration of the water and wastewater networks and facilities averages about 70%. Many of the facilities have been not only worn but also outmoded and do not meet the current technical and environmental requirements. The right-bank and left-bank wastewater treatment facilities of Irkutsk for many years have been overloaded: at the design capacity of 300 thousand m3/day the actual incoming wastewater flow has been 360 thousand m3/day. Lately, due to the significant reduction of the specific water consumption the incoming wastewater flow has reached 295 thousand m3/day. However the composition of the wastewater in relation to many parameters changed significantly; whereas the treatment efficiency lowered. As a result of the long time operation without heavy overhaul under the conditions of the corrosive wastewater a great number of reinforced concrete storage tanks, pipelines and equipment have been in poor state and need dismantling, repair, replacement and upgrade. In order to improve the efficiency of wastewater treatment the following basic process stages have been proposed: primary mechanical treatment; grit removal; biological treatment with nitrogen removal in the processes of nitrification-denitrification; chemical phosphorus removal by sedimentation method; enhanced treatment (organics and ammonia nitrogen removal) in a moving-bed bioreactor; suspended substances removal by enhanced tertiary treatment in sand filters; UV-disinfection. Upon complete reconstruction the required wastewater treatment level will meet the sanitary standards of the effluent quality to be discharged into water bodies.

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№6|2012

WATER AND WASTEWATER COMPANIES (VODOKANALS) IN RUSSIA

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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 Sergei

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.

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vstmag engfree 200x100 2

Баннер конференции для ВСТ 3

Wasma23 200x100 stand

myproject msk ru

Российская ассоциация водоснабжения и водоотведения

souz ingenerov 02