Tag:wastewater treatment

№9|2016

WASTEWATER TREATMENT

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UDC 628.353:661.5

Iantsen O. V.

Enhanced wastewater treatment with nitrogen compounds removal  in biofilters

Summary

Biofilters mainly built in Russia in 1960–1970-ies in most cases are a part of small-scale treatment facilities. At present most biofilters are in serviceable condition (owing to the specific design), however they provide for incomplete biological treatment. The results of the laboratory studies of the wastewater treatment technology in biofilters are presented. Several process flow schemes are considered, optimal modes of the facilities‘ operation are suggested. The properties of different filter media were studied. The advantages and drawbacks of the technologies and media studied are noted. Health-related and chemical parameters of the water treated are set. The diagrams that reflect running processes of nitrification-denitrification are presented. The use of a two-stage four-zone process flow scheme of biological wastewater treatment is substantiated. The suggested process flow scheme will provide for the wide use of biofilters both in upgrading the existing facilities and in designing new ones.

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№4|2013

WASTEWATER TREATMENT

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UDC 628.17.001.4

Baltser D. V.

Investigating amounts and physical and chemical properties of by-product coke plant effluents

Summary

The results of investigating generation and composition of by-product coke plant phenolic effluents are presented. Balance flow scheme of phenolic effluents entering a biochemical treatment unit has been designed. It was established that the specific flow rate of phenolic effluents per 1 tonne bulk coke was 0.65 m3/h compared to 0.4–0.5 m3/h standard rate, i. e. exceeding the standard value was obvious. The need of designing and establishing the system of by-product coke plant effluent management from the moment of their generation was specified.

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№10|2010

WASTEWATER TREATMENT

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UDC 628.356

Kharkina O. V., Shotina K. V.

Research in Operation of Nitri-Denitrification Aerotanks with Heightened Doses of Activated Sludge

Summary

Specialists of the MSUE Mosvodokanal have developed the technological method making it possible to develop purposefully activated sludge having a sludge index reduced stably for technology of biogenic elements removal and heightened speed of sedimentation. It makes it possible to increase the oxidation capacity of aerotanks as regard the chemical oxygen consumption and ammonium nitrogen. In the issue of pilot studies carried out the rise of oxidation capacity by 1,6–1,7 times owing to the change of technological conditions of the unit operation has been achieved. The method developed makes it possible to reconstruct aerotanks for biological treatment of wastewater for nitrogen and phosphorus without reduction of hydraulic loading.

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№10|2015

THE 25th ANNIVERSARY OF «ECOPOLYMER» GROUP

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UDC 628.1/.3

Meshengisser Yu. M.

Track record and «Ecopolymer» Company development path

Summary

The research and production activities of «Ecopolymer» Company for 25 years including the development of theoretical methods and programs of wastewater treatment quality assessment, designing powerful research installations of European level and computation software; executing turn-key projects (complete set of products and services from one supplier) have been summarized. The Company’s developments have been tested and introduced at the high capacity treatment facilities. «Ecopolymer» Company is associated with such notions as retechnologisation and advanced concept of water supply and wastewater disposal project, construction and upgrade management. The best available technologies have been used in all the projects including nitri-denitrification and phosphorus removal, advanced high efficiency equipment and process automated control systems. The next stage of «Ecopolymer» Company development was the separation of production and engineering business. My Project brand includes designing «turn-key» projects of treatment facilities construction and upgrade, and complete supervision of their implementation. We have established a real school of professional engineers that have advanced knowledge, creativity, energy and interpersonal skills.

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№12|2011

ADVANCED TECHNOLOGIES AND EQUIPMENT

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UDC 628.35:62-278

Gubanov L. N., Katraeva I. V., Rosenvinkel K.-Kh., Borkhman A., Kolpakov M. V., Kouzina Yu. S.

The use of ceramic membranes as submersible modules in membrane bioreactors

Summary

The results of laboratory testing the use of flat and tubular ceramic membranes as submersible modules in membrane bioreactors are presented. The studies were carried out with the use of flat ceramic membranes manufactured by ItN Nanovation German company and tubular membranes from Russian University of Chemical Engineering named after D. I. Mendeleyev. It was established that for the use in activated sludge media membranes with 200 nm pore size can be recommended; however, the transmembrane pressure shall be higher than –0.3 bar.

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№8|2010

ABROAD

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UDC 628.1.2:62-278

Frenkel V. S.

Membrane Technologies: Past, Present and Future (the North America as an Example)

SUMMARY

Basic tendencies in the field of development of membrane processes for water and wastewater treatment in the North America are covered. Main characteristics, basic trends and features of the use of membranes including membrane bioreactors are presented. Characteristics necessary for assessment and selection of the best membrane technologies for each certain project are compared. Membrane treatment has become the fastest growing sector in water treatment, wastewater treatment and water desalination. Four types of membranes are used according to membrane pore size: microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO). All four principal types of membrane guarantee the removal of the entire spectrum of water pollutants and can be used as a stand-alone technology for a majority of applications. Integrated membrane processes combining different membrane types are becoming a cutting edge approach to meet strict water/wastewater quality regulations because they allow the smallest possible system size, minimize chemical consumption, and provide the most cost-effective solution for the greatest number of applications.

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№5|2011

AT THE RUSSIAN ASSOCIATION OF WATER SUPPLY AND WASTEWATER DISPOSAL

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UDC 349.6:628.1/.3

Sapozhnikova V. A.

About the Necessity of Legislation Enhancement in Order to Stimulate the Formation and Development of Environmental Services Sector for Water and Wastewater Treatment in Russia

Summary

The intensive development of the global market of environmental services, water supply and wastewater treatment services constitute a considerable proportion, is one of macroeconomic tendencies. Foreign experts note the underdevelopment of this sector in Russia. The issues of functioning and prospects of development of the environmental services sector for water supply and wastewater treatment in Russia with due regard for legal and organizational aspects are considered. Key obstacles to the development of ecological industry and innovations (imperfection of the legislation and institutional environment, the scantiness of investment activity of private investors) are identified. Suggestions about the need to take legislative, administrative and organizational measures to stimulate the development of the environmental services sector for water supply and wastewater treatment are made.

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№3|2017

BEST AVAILABLE TECHNIQUES

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UDC 628.3:504.06

DANILOVICH D. A., Skobelev D. O., Shchelchkov K. A.

Determination of technological indicators of municipal wastewater treatment quality corresponding to the use of the best available techniques

Summary

In 2015 «Wastewater treatment in public wastewater disposal systems of communities, urban districts» information and technical gui­dance was compiled (ITG 10-2105). The document has been developed for the first time in Russia and has no parallels in European Union. One of the main problems in compiling ITG 10-2105 was developing the methodology of determining the technological indicators of the best available techniques. The analysis of this methodology was carried out in comparison with the existing in EC perspective approaches to the determination of the technological indicators including: projects selection and split up into groups; acquisition of data on the emissions into the atmosphere; selection of pollutants; analysis of the available information on discharges; differentiated determination of the emission level in relation to the best available techniques. The technological indicators of pollutants removed in the traditional biological treatment processes (suspended solids, BOD5, COD) were determined in the process of analyzing the data obtained by questioning the branch projects. Determination of the technological indicators for nitrogen and phosphorus compounds is based greatly on the expert assessment due to the small number of projects using BAT and due to the differences in the technologies applied. Generally the method for determining the technological indicators of BAT to the full extent corresponded to the practices currently used for this purpose in EC. In future during the preparation for ITG 10-2015 revision it is recommended to carry out monitoring and technological audit of BAT reference-projects as well as of the perspective technologies.

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№6|2012

WASTEWATER TREATMENT

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UDC 628.349.087.4:621.357

Pavlov D. V., Kolesnikov V. A.

Electroplating industry wastewater treatment: advanced solutions

Summary

An innovative technology of electroplating industry wastewater treatment on the basis of electroflotation and ultrafiltration combination has been developed. From technical and economic point of view this technology provides for removing heavy metals from wastewater to 0.01 mg/l, SS and oil products to 0.05 mg/l at relatively low wastewater treatment facilities operational expenditures. The electroflotation plant and unltrafiltration unit on the basis of tubular ceramic membranes are recommended for introduction at the industrial wastewater treatment facilities that are either subject to upgrade or under construction. The main task of the technology and equipment designers is the reduction of the treatment facilities construction and operation expenses while maintaining the high quality of treatment.

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№6|2013

WASTEWATER TREATMENT

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UDC 628.34:677.3

Pougachev E. A., Ryabaya А. К.

Processes and equipment for introducing zero-discharge water technology at the wool preparation plants

Summary

Methods of wool preparation wastewater treatment are considered. Specific features of recycling wastewater disposal, of wool preparation water use technology with valuable material utilization are presented. Balance calculations of water and solid flows are given.

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№10|2018

ENVIRONMENTAL PROTECTION

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UDC 628.1/3

Danilov A. N., KINEBAS A. K., Rublevskaya O. N., Gvozdev V. A.

Development of water supply and wastewater disposal technologies to supply Saint-Petersburg with clean water and protect the environment of the Baltic Sea Region

Summary

The description of process solutions applied by SUE «Vodokanal of St. Petersburg» for the development of the water supply and wastewater disposal systems in the XXI century is presented. Advanced technologies are the tools for achieving the core targets of the enterprise – delivering high-quality water supply and wastewater disposal services that will provide for the good living standards for the citizens, sustainable development of the metropolis, development of the water use culture and conservation of the Baltic Sea Marine. The information of the measures that provided for reducing the water consumption, improving the safety and reliability of the water supply of Saint-Petersburg is stated. The measures are highlighted that provided for the purification of 98.6% wastewater amount, allowed to introduce the technology of nutrients removal from wastewater at all the treatment facilities, to solve the problem of sludge utilization. The innovative technologies used in the construction and upgrade of sewers and networks are described. The information on the advanced solutions of snow utilization in the city is presented. The advanced technical solutions, materials and equipment applied at the facilities operated by SUE «Vodokanal of St. Petersburg» are the output of the continuous cooperation of the enterprise with domestic manufacturers, scientific and educational institutions, exchange of experience with the Russian and foreign water utilities.

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№7|2012

WASTEWATER TREATMENT

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UDC 628.32.004.69

Sapozhnikova V. A., Steblevsky V. I., Domnin K. V., Men’kov L. L., Ioakimis G. E., Doushko A. O., Bezverhnaya O. S., Kireyev G. A., Dodousov A. A.

Developing a project of the Khabarovsk city wastewater system reconstruction

Summary

The main aspects of the Khabarovsk wastewater system reconstruction project are highlighted. The project includes the following tasks: reconstruction of the Main pumping station on the supply and pressure sewers; improvement of the wastewater treatment capacity; construction of sludge composting facilities; upgrade of the digesters and biogas utilization at a power mini-plant; sludge landfill engineering; development of tertiary treatment, disinfection and oxygenation facilities; off-site utilities engineering – gas, fiber optic line, cold water supply, power lines; gas facilities engineering in the treatment facilities area.

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№7|2014

WASTEWATER TREATMENT

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UDC 628.31.004.69

Streltsov S. A., Belov N. A., Klimova L. A., Pshenko N. L.

Reconstruction of the Novo-Kur’ianovo wastewater treatment facilities

Summary

The Kur’ianovo wastewater treatment facilities are the European biggest municipal wastewater treatment complex. Being an advanced project for its time (1970-ies) by the XXI century the Kur’ianovo wastewater treatment facilities turned to be obsolescent and needed upgrading. In 2010 the project of upgrading the first and second blocks of the Novo-Kur’ianovo wastewater treatment facilities was launched. The specific features of the design solutions of recovering the capacity of the engineering structures of buildings and facilities of the wastewater treatment plant, of retrofitting nutrients removal process are considered alongside with the aspects of reducing malodorous emissions from the open surfaces of the facilities. Special attention in the project is paid to the selection of process equipment – advanced sludge scrapers, sludge pumps, turboblowers and aeration systems were installed. For the first time floating covers of the primary settling tanks were applied.

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№10|2015

EQUIPMENT SERVICE AND MAINTENANCE

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UDC 628.2:658.562.5

Advanced Well-Timed Service

Summary

The organizational and financial problems that the directors and operating personnel of water and wastewater utilities have to face are presented. The new solutions of the service maintenance of the equipment that meet the current regulatory requirements are suggested. A brand new service type is suggested – Advanced Well-Timed Service (AWTS) that is represented by a number of package offers so-called service-plans: «Precap maintenance», «Individual», «All Included». AWTS is aiming at the optimization of the expenditures of the utilities and operating companies, reduction of labor input for process equipment maintenance, its life extension and improvement of the working conditions of the operating personnel.

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№3|2011

ENERGY AND RESOURCES SAVING

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UDC 628.3:658.26.004.18

Streltsov S. A., Khamidov M. G., Bitiev A. V.

Reduction of Specific Consumption of Electric Power for Wastewater Disposal

Summary

The Moscow sewerage represents the complex system of engineering facilities reliable and efficient operation of which is one of the most important components of the city’s sanitary and ecological well-being. The sewerage system of Moscow has been constructed and operates with due regard for a great volume of consumption of energy resources: electric power, heat as well as the use of potable water for own technological needs. Under the conditions of water saving and annual reduction of water consumption and wastewater disposal the reduction of energy resources consumption is one of the basic goals.

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№5|2012

WASTEWATER TREATMENT

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UDC 628.35 (211)

Kounakhovich A. A.

Domestic wastewater advanced treatment unit for the use in the settlements of the northern climatic region

Summary

The experts from «Engineering Equipment Trading House» developed and mastered manufacturing of the treatment facilities for domestic wastewater and industrial wastes close by composition to domestic wastewater for the camps in the northern construction climatic region. Tver-C units for advanced treatment of domestic wastewater provide for the comprehensive solution to ensure efficient operation of the treatment facilities in rigorous climate northern areas.

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№3|2010

PROBLEMS, PERSPECTIVES

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UDC 628.31:725.384

NECHAEV I. A., BELEVCEV A. N., ZHAVORONKOVA V. I., MENSHUTIN Yu. A., BEZRUKOV S. Z., BAJKOVA S. A., MELNIKOVA N. N.

Ecological Problems of Operation of Car-Washing Facilities and Means of Their Solving

Summary

A brief analysis of problems connected with the use of water in car-washing systems, disposal and treatment of wastewater generated is made. Main components of the car-washing facility’s wastewater are suspended substances, oil products and synthetic surface active agents. To ensure efficient treatment of wastewater guaranteeing the quality of treated water meeting the requirements of its use in recirculating systems as well as for discharge into sewerage networks, basins or on the relief it is necessary to use a complex of methods including coagulation, flotation, ozonization and sorption. A principal basic flowchart of the use, treatment and disposal of wastewater from car-washing facilities guaranteeing water quality and meeting the normative standards is proposed.

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№10|2014

WASTEWATER TREATMENT

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UDC 628.334.13

KOZLOV M. N., Bogomolov M. V., Kevbrina M. V., Nikolaev Yu. A., Kolbasov G. A.

The efficiency of removing suspended solids from biologically treated effluent by microscreening in disc filters

Summary

The article covers the results of studying the separation of suspended solids from biologically treated effluent and separation of mixed liquor from aeration tanks by microscreening method. The specialists of R&D Centre of «Mosvodokanal» JSC performed pilot testing of microscreening technology. The tests were carried out in a pilot plant designed on the basis of DynaDisc filter (Nordic Water Products AB, Sweden). The surface of filtration area was 2.8 m2. The tests were carried out at the Kur’ianovskie Wastewater Treatment Facilities in Moscow. In the course of studies it was shown that disc mic­roscreening provided for effluent polishing with reducing suspended solids to 4 mg/l when using 18 µm sieve mesh and to 3 mg/l when using 10 µm sieve mesh. The concentration of suspended solids in backwash water is 0.5–1.4 g/l; backwash water flow rate does not exceed 1.2% of the installation capacity. Addition of Praestol 650 flocculant allows improving filtrate quality to 1 and 0.5 mg/l, respectively. The quality of filtrate during separation of mixed liquor from aeration tanks in DynaDisc filter with 50, 30 and 18 µm sieve mesh is, respectively, 140, 60 and 45 mg/l; suspended solids in backwash water – 30–70 g/l, backwash water flow rate – 6–8%. In the course of tests the optimal filter operational performance in effluent polishing and separating mixed liquor from aeration tanks by microscreening was determined.

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mvkniipr ru 

Российская ассоциация водоснабжения и водоотведения

WST19 200x300

Конференция итог

VAK2