ARCHITECTURE AND URBAN DEVELOPMENT. RESTRUCTURING AND RESTORATION

Features of Water Supply of Settlements in the Zone of Attraction of Megapolises

Vestnik MGSU 2/2018 Volume 13
  • Evdokimov Pavel Artem’evich - Moscow State University of Civil Engineering (National Research University) (MGSU) Postgraduate Student, Department of Hydraulics and Water Resources, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 196-202

Urbanization leads to the development of megacities. Three quarters of Russians live in large cities. Negative factors of urban habitation are environmental problems: air pollution, waste production, etc. Ecological problems of large cities stimulate relocation to the suburbs. Proximity to the megacity negatively affects the territories in its area of attraction. The greatest pollution of surface waters is observed in the central and Eastern regions. The maximum levels of pollution are recorded in the rivers Moskva, Oka and Klyazma. The settlements located downstream and within the area of influence of the metropolis are deprived of the use of surface water for drinking due to strong contamination. Megapolis consumes a large amount of resources, thereby creating a deficit of resources consumed by it in the zone of its influence. Mainly, water resources are affected. A settlement located in the thirty kilometer zone around the metropolis can not fully use the scheme of water supply due to groundwater. Intensive water withdrawal for the needs of a megapolis leads to the formation of a regional depression cone with the formation of zones of gravity filtration, which is caused by a high operating load. Subject: the subject of this research is the study of water supply problems in the zone of attraction of megalopolises. Materials and methods: the method of integrated assessment and analysis of the obtained data was used. Results: the article describes the problem of providing quality drinking water to settlements in the zone of attraction of big cities. It discusses the basic schemes of water supply. The main advantages and disadvantages of each of the considered schemes are revealed. A necessity to create a single integrated method for assessing the efficiency of the water supply scheme, aimed at the efficient use of natural resources in the present environmental and economic situation, is revealed. It is shown that the described methods of water supply have different characteristics, depending on the geographical, natural and social conditions in which the settlement is located. Assessment of the applicability of a method should be carried out primarily on the basis of natural indicators, since financial indicators are derived from the natural indicators and are often subjective. As a result of the research, the megacity influence zone was identified, assessment of the current situation in the water supply field was carried out on the example of the city of Moscow and the absence of a universal system for assessing the effectiveness of water supply methods was revealed. Conclusions: an analysis of the main methods of water supply to settlements located in the zone of attraction of large cities was carried out, water supply peculiarities of such settlements are formulated, and it is shown that none of the traditional methods of water supply is universal. To select the optimal method under specific conditions, it is advisable to develop and apply the generalized natural indicators that will determine the most effective method of water supply.

DOI: 10.22227/1997-0935.2018.2.196-202

Download

ALGORITHMS FOR CONSTRUCTING AND CALIBRATING ELECTRONIC MODELS OF WATER SUPPLY SYSTEM

Vestnik MGSU 7/2018 Volume 13
  • Primin Oleg Grigorievich - MosvodokanalNIIproekt Doctor of technical Sciences, Professor, Deputy General Director, MosvodokanalNIIproekt, 22 Pleteshkovsky per., Moscow, 105005, Russian Federation.
  • Gromov Grigory Nikolaevich - MosvodokanalNIIproekt Head of the Department for the design of sewage and water supply facilities, MosvodokanalNIIproekt, 22 Pleteshkovsky per., Moscow, 105005, Russian Federation.
  • Ten Adilovic Andrey - Joint Stock Company Mosvodokanal Sewage Network Operations Division Deputy Chief Engineer, Joint Stock Company Mosvodokanal, 2 Pleteshkovsky lane, Moscow, 105005, Russian Federation.

Pages 847-854

Subject: the deterioration and technical condition of water supply and drainage pipelines in most of Russia’s settlements, the limitation of material resources for their restoration and renovation in conditions of housing and communal services reform, require a scientifically grounded approach to the reconstruction and modernization of these systems [1-4]. To solve these problems, the Government of the Russian Federation approved and introduced normative documents1, 2. According to them, the development of centralized water supply and water disposal systems is carried out only in accordance with the general schemes of these systems3. As part of these schemes, it is necessary to develop an electronic model of a centralized water supply and disposal system for an objective assessment of the impact of activities aimed at optimizing their work [5]. The algorithm for constructing and calibrating the electronic model of the city’s water supply system is the subject of this study. Research objectives: development of a methodology for constructing electronic models and algorithms of calibrations which are applicable to the Russian Zulu software. Materials and methods: for an objective assessment of the impact of long-term measures aimed at improving the operation of the water supply network, as well as the development of the city’s water supply system, we use modeling along with the implementation of an adequate electronic model. The adequacy of the electronic model is achieved via its calibration [6]. The object of the research is the water supply system of Minsk and Salavat in the development of electronic models for realization of their development and reconstruction directions. Results: based on the experience of implementation of a number of water supply systems (Ufa, Irkutsk, Penza, Orenburg, Tyumen, Salavat, Minsk), a methodology for constructing and calibrating electronic models was developed; the algorithms applicable to the Russian Zulu software and necessary for construction of models were also developed. Conclusions: the results of the work are implemented on a number of water supply systems in the cities of Russia and can be recommended for application of information technologies in electronic model realization, the assessment and analysis of the functioning of water supply systems and the optimization of their operation.

DOI: 10.22227/1997-0935.2018.7.847-854

Download

Planning solutions of sanitary facilities in modern residential buildings

Vestnik MGSU 1/2015
  • Orlov Evgeniy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Scienc- es, Associate Professor, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 83-89

In the article the short historical review on the design of sanitary rooms and their configurations is given. The main errors of the recent years, which led to the decrease in accommodation convenience because of the wrong approach from both the architect and engineers, are given. It is possible to use a small useful area for sanitary facilities, but it is connected with the lack of possibility of connecting washing and dishwashers. The author considers the options of engineering equipment placement in sanitary rooms taking into account the convenience of use, safety, and also resource-saving aspect. Various solutions on the organization of heating and ventilation are provided. The possible technical solutions allowing solving a flooding problem of the first floors in elite housing estates in case of accident are offered with the help of full waterproofing of sanitary rooms, and also the whole area of the apartment. The main attention was focused on the improvements of sanitary rooms for one-room and two-room apartments, which are the most demanded in the modern market of real estate. Layout solutions of the reduced bathrooms on the placement of the necessary equipment with choice justification are provided. The attention is paid to the layout solution for modern kitchens on order to increase their comfort by the use of special two-section sinks, and also a grinder of food waste in order to allow to lower the load of the systems of rubbish disposal of a building, by dumping the crushed garbage in an internal sewer network. Various options of evolutionary development of sanitary rooms for increasing the comfort degree are given. First of all, the development should happen in the direction of not only sanitation and hygiene, but also of the maintenance of the physical health of the people living in the building. It can be carried out by increase in a useful area of sanitary rooms, installation of exercise machines, medical bathtubs and a Jacuzzi, which allows receiving good relaxation after a difficult day. Also one more direction will be the organization in occupations of an aquacycling, so-called water trainings in a special bathtub by means of exercise machines for strengthening of health of the population.

DOI: 10.22227/1997-0935.2015.1.83-89

References
  1. Naumov A.L., Brodach M.M. Resursosberezhenie v sistemakh vodosnabzheniya i vodootvedeniya [Resource-Saving in Water Supply and Water Disposal Systems]. Santekhnika [Sanitary Engineering]. 2012, no. 1, pp. 14—19. (In Russian)
  2. Svintsov A.P., Gusakov S.V., Rybakov Yu.P. Ekspluatatsionnaya nadezhnost’ sanitarno-tekhnicheskoy armatury [Operational Reliability of Sanitary Fittings]. Santekhnika [Sanitary Engineering]. 2010, no. 6, pp. 48—53. (In Russian)
  3. Alekseev V.S. Izmeneniya i dopolneniya v Vodnyy kodeks Rossiyskoy Federatsii [Changes and Additions in the Water Code of the Russian Federation]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Equipment]. 2013, no 12, pp. 5—10. (In Russian)
  4. Brodach M.M. Voda — istochnik zhizni i dvizhushchaya sila dlya ustoychivogo razvitiya [Water — a Source of Life and a Driving Force for Sustainable Development]. Santekhnika [Sanitary Engineering]. 2009, no. 5, pp. 6—9. (In Russian)
  5. Wang H., Hu C., Hu X., Yang M., Qu J. Effects of Disinfectant and Biofilm on the Corrosion of Cast Iron Pipes in a Reclaimed Water Distribution System. Water Research. 2012, vol. 46, no. 4, pp. 1070—1078. DOI: http://dx.doi.org/10.1016/j.watres.2011.12.001.
  6. Orlov E.V. Sistema vnutrennego vodoprovoda. Novyy tip vodorazbornykh priborov v zdaniyakh. Avtomaty pit’evoy vody [Systems of an Internal Water Supply System. New Type of Water Folding Devices in Buildings. Machine Guns of Drinking Water]. Tekhnika i tekhnologii mira [Equipment and Technologies of the World]. 2013, no. 1, pp. 37—41. (In Russian)
  7. Orlov V.A. Puti obespecheniya sanitarnoy nadezhnosti vodoprovodnykh setey [Ways of Ensuring Sanitary Reliability of Water Supply Systems]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 1, pp. 181—187. (In Russian)
  8. Varbanets M.P., Zurbrügg C., Swartz C., Pronk W. Decentralized Systems for Potable Water and the Potential of Membrane Technology. Water Research, 2009, vol. 43, no. 2, pp. 245—265. DOI: http://dx.doi.org/10.1016/j.watres.2008.10.030.
  9. Alekseev V.S. Sovremennoe sostoyanie normativnoy bazy v oblasti vodosnabzheniya [Current State of Regulatory Base in the Field of Water Supply]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Equipment]. 2014, no. 3, pp. 4—14. (In Russian)
  10. Lehtola M.J., Nissinen T.K., Miettinen I.T., Martikainen P.J., Vartiainen T. Removal of Soft Deposits from the Distribution System Improves the Drinking Water Quality. Water Research. 2004, vol. 38, no. 3, pp. 601—610. DOI: http://dx.doi.org/10.1016/j.watres.2003.10.054.
  11. Brodach M.M. Zelenoe vodosnabzhenie i vodootvedenie [Green Water Supply and Water Disposal]. Santekhnika [Sanitary Engineering]. 2009, no. 4, pp. 6—9. (In Russian)
  12. Vreeburg J.H.G., Boxall J.B. Discolouration in Potable Water Distribution Systems: A Review. Water Research. 2007, vol. 41, no. 3, pp. 519—529. DOI: http://dx.doi.org/10.1016/j.watres.2006.09.028.
  13. Orlov V.A. Taktika renovatsii vodoprovodnykh i vodootvodyashchikh setey [Tactics of Renovation of Water Supply and Water Disposal Systems]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 2, pp. 167—171. (In Russian)
  14. Yang F., Shi B., Gu J., Wang D., Yang M. Morphological and Physicochemical Characteristics of Iron Corrosion Scales Formed under Different Water Source Histories in a Drinking Water Distribution System. Water Research. 2012, vol. 46, no. 16, pp. 5423—5433. DOI: http://dx.doi.org/10.1016/j.watres.2012.07.031.
  15. Porshnev V.N., Novikova L.V. Meropriyatiya po energosberezheniyu i snizheniyu poter’ vody v sistemakh gorodskogo vodosnabzheniya [Actions for Energy Saving and Decrease in Water Losses of City Water Supply Systems]. Energosberezhenie [Energy Saving]. 2005, no. 10, pp. 78—84. (In Russian)

Download

Leaks in the internal water supply piping systems

Vestnik MGSU 3/2015
  • Orlov Evgeniy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Scienc- es, Associate Professor, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Komarov Anatoliy Sergeevich - LLC “GLAKOMRU” Candidate of Technical Sciences, Director General, LLC “GLAKOMRU”, B. Koptevskiy proezd, Moscow, 8105039, Russian Federation; +7 (499) 183-54-56; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mel’nikov Fedor Alekseevich - Moscow State University of Civil Engineering (MGSU) student, Institute of Engineering and Ecological Construction and Mechanization, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499)183-36-29; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Serov Aleksandr Evgen’evich - Moscow State University of Civil Engineering (MGSU) student, Institute of Engineering and Ecological Construction and Mechanization, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499)183-36-29; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 40-47

Great water losses in the internal plumbing of a building lead to the waste of money for a fence, purification and supply of water volumes in excess. This does not support the concept of water conservation and resource saving lying today in the basis of any building’s construction having plumbing. Leakage means unplanned of water losses systems in domestic water supply systems (hot or cold) as a result of impaired integrity, complicating the operation of a system and leading to high costs of repair and equipment restoration. A large number of leaks occur in old buildings, where the regulatory service life of pipelines has come to an end, and the scheduled repair for some reason has not been conducted. Steel pipelines are used in the systems without any protection from corrosion and they get out of order. Leakages in new houses are also not uncommon. They usually occur as a result of low-quality adjustment of the system by workers. It also important to note the absence of certain skills of plumbers, who don’t conduct the inspections of in-house systems in time. Sometimes also the residents themselves forget to keep their pipeline systems and water fittings in their apartment in good condition. Plumbers are not systematically invited for preventive examinations to detect possible leaks in the domestic plumbing. The amount of unproductive losses increases while simultaneous use of valve tenants, and at the increase of the number of residents in the building. Water leaks in the system depend on the amount of water system piping damages, and damages of other elements, for example, water valves, connections, etc. The pressure in the leak area also plays an important role.

DOI: 10.22227/1997-0935.2015.3.40-47

References
  1. Isaev V.N., Chukhin V.A., Gerasimenko A.V. Resursosberezhenie v sisteme khozyaystvenno-pit’evogo vodoprovoda [Resource-saving in Household and Drinking Water Supply System]. Santekhnika [Sanitary Equipment]. 2011, no. 3, pp. 14—17. (In Russian)
  2. Chukhin V.A., Bastrykin R.I., Andrianov A.P. Izuchenie korrozionnykh otlozheniy v truboprovodakh sistem podachi i raspredeleniya pit’evoy vody [Study of Corrosion Deposits in the Piping of Drinking Water Supply and Distribution Systems]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Technique]. 2013, no. 7, pp. 30—36. (In Russian)
  3. Orlov V.A. Puti obespecheniya sanitarnoy nadezhnosti vodoprovodnykh setey [Ways to Ensure the Sanitary Safety of Water Supply Networks]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 1, pp. 181—187. (In Russian)
  4. Mikhaylin A.V., Chukhin V.A. Tekhnologiya obessolivaniya vody metodom reversivnogo elektrodializa s bipolyarnymi membranami [Technology of Desalting Water by the Method of Reverse Electrodialysis with Bipolar Membranes]. Promyshlennoe i grazhdanskoe stroitel’stvo [Industrial and Civil Engineering]. 2012, no. 9, pp. 49—51. (In Russian)
  5. Guzzon A., Bohn A., Diociaiuti M., Albertano P. Cultured Phototrophic Biofilms for Phosphorus Removal in Wastewater Treatment. Water Research. 2008, vol. 42, no. 16, pp. 4357—4367. DOI: http://dx.doi.org/10.1016/j.watres.2008.07.029.
  6. Sriwiriyarat T., Randall C.W. Performance of IFAS Wastewater Treatment Processes for Biological Phosphorus Removal. Water Research. 2005, vol. 39, no. 16, pp. 3873—3884. DOI: http://dx.doi.org/10.1016/j.watres.2005.07.025.
  7. Pugachev E.A. Sotsial’nye aspekty vodopol’zovaniya. Analiz otnosheniya cheloveka k prirodnomu resursu — vode [Social Aspects of Water Use. Analysis of the Relation of a Human to a Natural Resource — Water]. Tekhnologii mira [Technologies of the World]. 2011, no. 4, pp. 39—47. (In Russian)
  8. Mikhaylin A.V., Chukhin V.A. Besstochnaya tekhnologiya obessolivaniya vody [Drainless Technology of Water Desalting]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 2, pp. 151—153. (In Russian)
  9. Orlov E.V. Sistema vnutrennego vodoprovoda. Novyy tip vodorazbornykh priborov v zdaniyakh. Avtomaty pit’evoy vody [Internal Water Supply System. New Type of Water Folding Devices in Buildings. Drinking Water Machines]. Tekhnika i tekhnologii mira [Equipment and Technologies of the World]. 2013, no. 1, pp. 37—41. (In Russian)
  10. De-Bashan L.E., Hernandez J.P., Morey T., Bashan Y. Microalgae Growth-Promoting Bacteria as «Helpers» for Microalgae: a Novel Approach for Removing Ammonium and Phosphorus from Municipal Wastewater. Water Research. 2004, vol. 38, no. 2, pp. 466—474. DOI: http://dx.doi.org/10.1007/978-1-4020-5765-6_28.
  11. Scolan Y., Korobkin A. Mixed Boundary Value Problem in Potential Theory: Application to the Hydrodynamic Impact (Wagner) Problem. Comptes Rendus Mecanique. 2012, vol. 340, no. 10, pp. 702—705. DOI: http://dx.doi.org/10.1016/j.crme.2012.09.006.
  12. Pugachev E.A., Porokhnya A.E. Effektivnoe ispol’zovanie vody. Proizvodstvennye promyvochnye protsessy na fabrikakh [Efficient Use of Water. Industrial Washing Processes at Factories]. Tekhnika i tekhnologii mira [Equipment and Technologies of the World]. 2014, no. 7, pp. 37—41. (In Russian)
  13. Khurgin R.E., Orlov V.A., Zotkin S.P., Maleeva A.V. Metodika i avtomatizirovannaya programma opredeleniya koeffitsienta Shezi «S» i otnositel’noy sherokhovatosti «n» dlya beznapornykh truboprovodov [Methodology and Automated Program for Determining the Coefficient of Chezy “C” and Relative Roughness “N” For Non-Pressure Pipelines]. Nauchnoe obozrenie [Scientific Review]. 2011, no. 4, pp. 54—60. (In Russian)
  14. Iafrati A., Korobkin A. Asymptotic Estimates of Hydrodynamic Loads in the Early Stage of Water Entry of a Circular Disk. Journal of Engineering Mathematics. 2011, vol. 69, no. 2—3, pp. 199—224.
  15. Zwierzchowska A. Optymalizacja doboru metod bezwykopowej budowy. Politechnika swietokrzyska. 2003, pp. 16—19.
  16. Orlov E.V. Vodo- i resursosberezhenie. Zhilye zdaniya kottedzhnykh i dachnykh poselkov poselkov [Water- and Resource-Saving. Residential Buildings of Cottage and Housing Estates]. Tekhnologii mira [Technologies of the World]. 2012, no. 10, pp. 35—41. (In Russian)
  17. Orlov V.A. Gidravlicheskie issledovaniya i raschet napornykh truboprovodov, vypolnennykh iz razlichnykh materialov [Hydraulic Studies and Calculation of Pressure Pipes Made of Different Materials]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 1, pp. 177—180. (In Russian)
  18. Isaev V.N., Davydova A.A. Pit’evoe i khozyaystvennoe vodosnabzhenie [Drinking and Household Water Supply]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 2, pp. 148—150. (In Russian)
  19. Otstavnov A.A., Khar’kin V.A., Orlov V.A. K tekhniko-ekonomicheskomu obosnovaniyu bestransheynogo vosstanovleniya vetkhikh samotechnykh truboprovodov iz traditsionnykh trub polimernymi [To Feasibility Study of Trenchless Repair of the Old Gravity Pipelines Made of Traditional Pipes With Polymer Ones]. Santekhnika, otoplenie, konditsionirovanie [Plumbing. Heating. Conditioning. Energy Efficiency]. 2004, no. 4, pp. 30—34. (In Russian)
  20. Otstavnov A.A., Orlov E.V., Khantaev I.S. Opredelenie prioritetnykh uchastkov remonta sistem vodosnabzheniya i vodootvedeniya [Definition Of Priority Areas For Water Supply And Sanitation Systems Repair]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Technique]. 2007, no. 3, pp. 25—30. (In Russian)
  21. Orlov V.A. Bionika i bestransheynaya renovatsiya truboprovodnykh setey [Bionics and Trenchless Renovation of Pipeline Systems]. Nauchnoe obozrenie [Scientific Review]. 2013, no. 3, pp. 147—151. (In Russian)
  22. Otstavnov A.A., Primin O.G., Khrenov K.E., Orlov V.A., Khar’kin V.A. O gidroudarakh v podzemnykh truboprovodakh iz polietilenovykh trub [On Hydraulic Impacts in Underground Pipelines Made of Polyethylene Pipes]. Santekhnika, otoplenie, konditsionirovanie [Plumbing. Heating. Conditioning. Energy Efficiency]. 2012, no. 3 (123), pp. 12—17. (In Russian)
  23. Ishmuratov R.R., Stepanov V.D., Orlov V.A. Opyt primeneniya bestransheynoy spiral’no-navivochnoy tekhnologii vosstanovleniya truboprovodov na ob’’ektakh Moskvy [The Experience of Using Trenchless Spiral Winding Technology o Piping Recovery on the Objects In Moscow]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Technique]. 2013, no. 6, pp. 27—32. (In Russian)
  24. Kaczor G., Bergel T. The Effect of Incidental Waters on Pollution Load in Inflows to the Sewage Treatment Plants and to the Receivers of Sewage. Przemysł Chemiczny. 2008, vol. 87, pp. 476—478.
  25. Kaczor G., Bugajski P. Impact of Snowmelt Inflow on Temperature of Sewage Discharged to Treatment Plants. Pol. J. Environ. Stud. 2012, vol. 21, no. 2, pp. 381—386.

Download

Features of water supply and water disposal of waste disposal systems in buildings

Vestnik MGSU 10/2014
  • Orlov Evgeniy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Scienc- es, Associate Professor, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 141-146

In the article the main design errors of the systems of rubbish disposal over recent years are considered, in which the systems of water supply and water disposal had a supporting role. The main problems arising during operation of dry cold refuse chutes, the deprived new technical solutions on water supply and sewerage are shown. Solutions of the main task of ensuring sanitary and hygienic safety of people living in the building by installation and operation of special clearing devices with a supply of cold and hot water are provided. They allow placing the necessary equipment for cleaning an internal surface of a trunk of a refuse chute in the compact case. It will allow not only to get rid of unpleasant smells, but also will prevent distribution of rodents and insects in the whole residential building. Also this device allows fighting against obstruction of a trunk of a refuse chute large-size subjects that isn’t a rarity recently at operation of a dry cold refuse chute in a building. Much attention is paid to the organization of fire safety in case of possible fire in the collecting garbage camera that can lead to smoking of staircases and poisoning with carbon monoxide of people living in the building. The technical solutions are given, which allow to refuse using sprinkler fire extinguishing system because of its inefficient work for fire extinguishing in the collecting garbage camera. It is offered to pass to the deluge systems, allowing to extinguish a fire either automatically with the help of smoke sensor installed indoors, or by means of the controlling service personnel in the garbage container. The special attention is paid to consideration of the questions of suppression of possible ignition in a refuse chute trunk, which can occur at ejection of a burning subject in the trunk hammered with large-size garbage. As the solution to this problem it is offered to use also drencher fire extinguishing and special gas analyzers for catching of vapors of a caustic smoke, which can suddenly appear and lead to serious incidents.

DOI: 10.22227/1997-0935.2014.10.141-146

References
  1. Orlov E.V. Sistemy musoroudaleniya. Ekspluatatsiya v mnogoetazhnom zhilom dome [Rubbish Disposal Systems. Operation in a Multystoried Building]. Tekhnologii mira [Technologies of the World]. 2013, no. 4, pp. 33—37. (in Russian)
  2. Khramenkov S.V. Energoeffektivnye proekty vodnogo khozyaystva Moskvy [Energy-Saving Projects of Water Management in Moscow]. Energosberezhenie [Energy Saving]. 2010, no. 1, pp. 14—17. (in Russian)
  3. Isaev V.N., Mkhitaryan M.G. Aktualizatsiya SNiP 2.04.01—85* [Update of Construction Norms and Requirements SNiP 2.04.01—85*]. Truboprovody i ekologiya [Pipelines and Ecology]. 2009, no. 3, pp. 11—15. (in Russian)
  4. Isaev V.N., Davydova A.A. Pit’evoe i khozyaystvennoe vodosnabzhenie [Drinking and Domestic Water Supply]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 2, pp. 148—150. (in Russian)
  5. Husband P.S., Boxall J.B. Asset Deterioration and Discolouration in Water Distribution Systems. Water Research. 2011, vol. 45, no. 1, pp. 113—124. DOI: http://dx.doi.org/10.1016/j.watres.2010.08.021.
  6. Isaev V.N. Sotsial’no-ekonomicheskie aspekty vodosnabzheniya i vodootvedeniya [Social and Economic Aspects of Water Supply and Water Disposal]. Santekhnika [Sanitary Engineering]. 2007, no. 1, pp. 8—16. (in Russian)
  7. Shevchenko T.I. Izvlechenie resursov iz otkhodov: motivatsionnye aspekty [Extraction of Resources from Waste: Motivational Aspects]. Tverdye bytovye otkhody [Municipal Solid Waste]. 2010, no. 5 (47), pp. 14—17. (in Russian)
  8. Hong H.C., Mazumder A., Wong M.H., Liang Y. Yield Of Trihalomethanes And Haloacetic Acids upon Chlorinating Algal Cells, and its Prediction via Algal Cellular Biochemical Composition. Water Research. 2008, no. 42, pp. 4941—4948. DOI: http://dx.doi.org/10.1016/j.watres.2008.09.019.
  9. Lukasheva E.P. Ot musora k toplivu [From Garbage to Fuel]. Tverdye bytovye otkhody [Municipal Solid Waste]. 2010, no. 4, pp. 58—59. (in Russian)
  10. Antonov A.A., Shilkin N.V. Sistemy musoroudaleniya i bel’eprovody. Osobennosti proektirovaniya i ekspluatatsii [Systems of Rubbish Disposal and Laundry Duct. Features of Design and Operation]. AVOK. 2009, no. 4, pp. 28—42. (in Russian)
  11. Samoylov A.V. Ustanovka i rekonstruktsiya sistem musoroudaleniya. Problemy i puti resheniya [Installation and Reconstruction of the Systems of Rubbish Disposal. Problems and Solutions]. AVOK. 2010, no. 1, pp. 52—62. (in Russian)
  12. Azza M. Abd El-Aty, Mohamed B.M. Ibrahim, Mohamed A. El-Dib, Emad K. Radwan. Influence of Chlorine on Algae as Precursors for Trihalomethane and Haloacetic Acid Production. World Applied Sciences Journal. 2009, vol. 6, no. 9, pp. 1215—1220.
  13. Orlov E.V. Sistema bel’eprovoda v zdaniyakh. Ustroystvo i printsip raboty [System of Laundry Duct in Buildings. Arrangement and Principle of Work]. Tekhnologii mira [Technologies of the World]. 2013, no. 7, pp. 37—39. (in Russian)
  14. Min B., Logan B.E. Continuous Electricity Generation from Domestic Wastewater and Organic Substrates in a Flat Plate Microbial Fuel Cell. Environ. Sci. Technol. 2004, no. 38 (21), pp. 5809—5814. DOI: http://dx.doi.org/10.1021/es0491026.
  15. Vreeburg J.H.G., Schippers D., Verberk J.Q.J.C., van Dijk J.C. Impact of Particles on Sediment Accumulation in a Drinking Water Distribution System. Water Research. 2008, vol. 42, no. 16, pp. 4233—4242. DOI: http://dx.doi.org/10.1016/j.watres.2008.05.024.

Download

MODERNIZATION OF WATER SUPPLY SYSTEM BASING ON OPTIMIZATION OF HYDRAULIC PARAMETERS IN CASE OF ACCIDENTS ON MAIN LINES

Vestnik MGSU 10/2015
  • Shcherbakov Vladimir Ivanovich - Voronezh State University of Architecture and Civil Engineering (VGASU) Doctor of Technical Sciences, Professor, Department of Hydraulics, Water Supply and Water Disposal, Voronezh State University of Architecture and Civil Engineering (VGASU), 84 20-letiya Oktyabrya str., Voronezh, 394006, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Nguyen Huy Cuong - Voronezh State University of Architecture and Civil Engineering (VGASU) postgraduate student, Department of Hydraulics, Water Supply and Water Disposal, Voronezh State University of Architecture and Civil Engineering (VGASU), 84 20-letiya Oktyabrya str., Voronezh, 394006, Russian Federation.

Pages 115-126

In the large cities of Vietnam there is a serious problem of providing the drinking water of good quality to population and industry in the required quantity and with sufficient pressure. Chaotic building in certain areas has resulted in the formation of quite complex water systems, consisting of large main pipelines and a plurality of dead ends. Because of insufficient water pressure in the water network, the majority of consumers have to install individual reservoirs and tanks on the roofs of the buildings. The uneven water withdrawal from the network and its irrational use violates the hydraulic regime of water supply and distribution. The authors offer a water supply scheme with the accompanying transit flow lines with pipes of smaller diameter which allow providing the required amount of water and increasing the pressure on the ring. Hydraulic calculations of ring network were made using the software program WaterGEMS V8i for the worst case of the system of water supply. The plots of the water supply network show an increase in diameter of pipes is required, which greatly reduces pressure losses and ensures a reliable supply of water to the consumer. In order to solve the problem of optimal power flow, a scheme of water supply with associated main pipelines with smaller diameter was created. Laying of main pipelines accompanied by parallel lines connected to them provide better hydraulic conditions, reduce the pressure loss in the piping and shortens power consumption.

DOI: 10.22227/1997-0935.2015.10.115-126

References
  1. Những quả 'bom' tấn chênh vênh trên nóc tập thể xập xệ // zing.vn. Available at: http://news.zing.vn/Nhung-qua-bom-tan-chenh-venh-tren-noc-tap-the-xap-xe-post461545.html. Date of access: 13.09.2015.
  2. Shcherbakov V.I. Gorodskoy vodoprovod [City Water Supply System]. Voronezh, VGASU Publ., 2000, 240 p. (In Russian)
  3. Eletskikh V.L., Shcherbakov V.I. Voda i lyudi : Istoriya i den’ segodnyashniy [Water and People : The History and Today]. Voronezh, Tvorcheskoe ob”edinenie «Al’bom» Publ., 2004, 248 p. (In Russian)
  4. TCVN 33—2006. WaterSupply — Distribution System and Facilities — Design Standard. 2006, 190 p.
  5. Shcherbakov V.I., Nguen H.C. K raschetu sistemy vodosnabzheniya rayona Tkhu Dyk g. Khoshimin [Calculation of Water Supply of the District Thu Duc in Ho Chi Minh City]. Nauchnyy vestnik Voronezhskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta. Vysokie tekhnologii. Ekologiya [Scientific Herald of the Voronezh State University of Architecture and Civil Engineering. Hightech. Ecology]. 2015, no. 1, pp. 155—159. (In Russian)
  6. Shcherbakov V.I., Nguen Kh.K. Problemy vodosnabzheniya krupnykh gorodov V’etnama [Problems of Water Supply in Large Cities of Vietnam]. Nauchnyy vestnik Voronezhskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta. Stroitel’stvo i arkhitektura [Scientific Herald of the Voronezh State University of Architecture and Civil Engineering. Construction and Architecture]. 2015, no. 2, pp. 49—56. (In Russian)
  7. Larock B.E., Jeppson R.W., Watters G.Z. Hydraulics of Pipeline Systems. Florida, CRC Press LLC, 2000, 533 p.
  8. Menon E.S., Menon P.S. Working Guide to Pumps and Pumping Stations. Oxford, Linacre House, Jordan Hill, 2010, 283 p.
  9. American Water Works Association. Computer Modeling of Water Distribution Systems M32. Printed in the United States of America. 2005, 159 p.
  10. Adrien N.G. Computational Hydraulics and Hydrology. CRC Press LLC, Florida, 2004, 449 p.
  11. Bentley WaterGEMS V8i. Watertown. CT 06795 USA, 2012. Available at: http://www.bentley.com/en-US/Products/WaterGEMS/how-to-get.htm/. Date of access: 15.07.2015.
  12. Nguen H.C. Raschet i proektirovanie vodoprovodnykh setey na WaterCAD [Calculation and Design of Water Distribution Networks in the WaterCAD]. Nauchnyy vestnik Voronezhskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta. Student i nauka [Scientific Herald of the Voronezh State University of Architecture and Civil Engineering. Student and Science]. 2008, no. 4, pp. 131—134. (In Russian)
  13. Sumithra R.P., Nethaji V.E., Amaranath J. Feasibility Analysis and Design of Water Distribution System for Tirunelveli Corporation Using Loop and Watergems. International Journal on Applied Bioengineering, Sathyabama University, Chennai, India. 2013, vol. 7, no. 1, pp. 61—71.
  14. Shcherbakov V.I., Panov M.Ya., Kvasov I.S. Analiz, optimal’nyy sintez i renovatsiya gorodskikh sistem vodosnabzheniya i gazosnabzheniya [Analysis, Optimal Synthesis and Renovation of City Water Supply and Gas Supply Systems]. Voronezh, VGASU Publ., 2001, 291 p. (In Russian)
  15. Panov M.Ya., Levadnyy A.S., Shcherbakov V.I., Stogney V.G. Modelirovanie, optimizatsiya i upravlenie sistemami podachi i raspredeleniya vody [Modeling, Optimization and Control of Water Supply and Distribution Systems]. Voronezh, VGASU Publ., 2005, 489 p. (In Russian)
  16. Walski T.M. Advanced Water Distribution Modeling and Management. Bentley Institute Press, 2003, 751 p.
  17. Barnard T., Durrans R., Lowry S., Meadows M. Computer Application in Hydraulic Engineering. 7th ed. Bentley Institute Press, 2006, 645 p.
  18. Panov M.Ya., Petrov Yu.F., Shcherbakov V.I. Modeli upravleniya funktsionirovaniem sistem podachi i raspredeleniya vody [Management Models of Functioning of Water Supply and Distribution Systems]. Voronezh, VGASU Publ., 2012, 272 p. (In Russian)
  19. Panov M.Ya., Shcherbakov V.I., Kvasov I.S. Modelirovanie vozmushchennogo sostoyaniya gidravlicheskikh sistem slozhnoy konfiguratsii na osnove printsipov energeticheskogo ekvivalentirovaniya [Simulation of the Perturbed State of Hydraulic Systems with Complex Configuration Based on the Principles of Energy Equivalenting]. Izvestiya Rossiyskoy akademii nauk. Energetika [News of the Russian Academy of Sciences. Energetics]. 2002, no. 6, pp. 130—137. (In Russian)
  20. Panov M.Ya., Shcherbakov V.I., Kvasov I.S. Metodologiya faktornogo analiza vodoraspredeleniya i vodopotrebleniya [Methodology of Factor Analysis of Water Allocation and Water Demand]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2001, no. 5, pp. 82—87. (In Russian)
  21. Matynenko G.N., Panov M.Ya., Shcherbakov V.I., Davydov I.P. Optimal’nyy sintez gidravlicheskikh truboprovodnykh sistem v oblasti operativnogo upravleniya [Optimum Synthesis of Hydraulic Piping Systems in the Area of Operational Management]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2004, no. 2, pp. 78—83. (In Russian)
  22. Adichai Pornorommin, Lipiwattanakarn Surachai, Chittaladakorn Suwatana. Numerical Simulation of Water Distribution System of Thungmahamek Branch, Bangkok, Thailand. International Symposium on Asian Simulation and Modeling 2007. Chiang Mai, Thailand, 2007, pp. 161—168.
  23. Pornprommin A., Lipiwattanakarn S., Chittaladakorn S. Water Distribution Network Analysis for DM A Design of Ladpra o Branch, Bangkok, Thailand. International Symposium on Managing Water Supply for Growing Demand. Bangkok, Thailand, 2006, pp. 45—50.

Download

THE WAVE NATURE OF TUBERCLE CORROSION IN STEEL AND CAST IRON PIPES OF WATER SUPPLY SYSTEMS

Vestnik MGSU 3/2018 Volume 13
  • Chukhin Valentin Aleksandrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Training Master of the Department of Water Supply and Sewerage, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Andrianov Aleksey Petrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Water Supply and Sewerage, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 385-399

Subject: the article is devoted to the study of corrosion processes in the water supply pipeline network. Initial growth and spatial orientation of corrosive tubercle deposits in non-coated steel pipes were studied. Experimental data are presented and an analysis of conditions and mechanism of formation of corrosive tubercles in water pipes is carried out. An assumption is made about the effect of flow velocity on the formation, growth and spatial distribution of tubercle deposits on the inner surface of the pipe. Research objectives: study of the mechanism of metal pipes corrosion in the water supply systems; development and experimental verification of the hypothesis of formation of tubercle corrosion deposits in pipelines. Materials and methods: the literature data on morphology and composition of tubercle corrosion deposits is analyzed. An experimental study of the initial stage of steel pipe corrosion under static and dynamic conditions has been carried out. Shape and composition of corrosion deposits on the metal surface were analyzed with the help of scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The rate of corrosion in a steel non-coated pipe in cold tap water was measured. Results: the study of corrosion sediment shows that its formation and properties are significantly influenced by water flow rate. In the static regime, a uniform distribution of the anode and cathode areas, covered with loose sediment, is observed over the entire area of the sample. In the dynamic mode, the sediment is partially or completely removed from sample surface and the corrosion rate increases. The corrosion process proceeds with oxygen and hydrogen depolarization and contribution of hydrogen depolarization is significant. Over the anodic sections, a dense layer forms with magnetite formation during the cathodic reduction of iron hydroxides. The corrosion rate gradually decreases with time. The presence of sediment on the metal surface slows down the corrosion rate. Conclusions: the conducted studies showed that in the presence of water movement, larger anode and cathode areas are formed on non-galvanized steel pipe samples. These areas, in the course of further corrosion, are transformed into tubercles. Formation of two structural elements of future tubercle deposits was experimentally verified. Water flow velocity, along with the electrochemical processes, is a factor that directly influences the tubercle spatial arrangement and growth on the inner surface of the pipe.

DOI: 10.22227/1997-0935.2018.3.385-399

Download

Results 1 - 7 of 7