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APPLICATION OF THE INSTANT HOT WATER DISPENSER INTEGRATED INTO THE INTERNAL WATER SUPPLY SYSTEM OF RESIDENTIAL BUILDINGSAS AMETHOD OF SAVING POWER AND OTHER RESOURCES

Vestnik MGSU 4/2012
  • 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 195 - 199

The author compares the instant water boiling technology and the use of electric teapots in the article. Strengths and weaknesses of the instant water boiling technology and its integration into the internal water supply system are also demonstrated.
Aqua Hot 98 instant hot water dispenser is capable of heating up to 60 cups in an hour, while consuming 20 % of the electric power needed to boil the water on a stove or in an electric tea pot. Besides, the water is ready for consumption at any moment of time.
The amount of water heated by the instant hot water dispenser is the one that is needed at a particular moment of time; electric power and water consumption rates are efficient enough to guarantee substantial reduction of utility payments.
Given the fact that Aqua Hot 98 instant hot water dispenser is also capable of supplying cold filtered water, the proposed technology is more economical and ecological that bottled water supply, as plastic bottles accumulated at junkyards damage the environment.
The weakness of the proposed technology is its cost, as it is far more expensive than an electric kettle.

DOI: 10.22227/1997-0935.2012.4.195 - 199

References
  1. Nanasova S.M., Mihajlin V.M. Monolitnye zhilye zdanija [Monolithic Residential Buildings]. Moscow, ASV Publ., 2010.
  2. Kedrov V.S., Lovcov E.N. Sanitarno-tehnicheskoe oborudovanie zdaniy [Sanitary and Engineering Equipment of Buildings]. Мoscow, Stroyizdat Publ., 1989.
  3. Official web-site of InsinkErator, available at: http://www.insinkerator.ru/. Date of access: 20.02.2011.

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Use of the water supply system of special purpose in buildings

Vestnik MGSU 9/2014
  • 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 76-81

A water supply system of a special purpose is a necessary element in hot and cold shops of the industrial enterprises, office buildings and the medical centers, and also other rooms. The water supply systems of a special purpose, which give subsalty, sparkling water and water sated with oxygen, allow people to prevent, for example, strong dehydration of an organism, which is possible at big losses of water, especially in case of the people working in hot shops. Various elements of special drinking water supply system are given in the article, their main functions are described. Different types of the water folding devices pumping water to consumers, one of which is drinking fountain, are considered. Possible systems of water filtration, which can be established for quality improvement, are transferred. Among them the great role is played by membrane technologies and the return osmosis, which is widely applied now. Today there is a possibility of construction, both the centralized water supply system of a special purpose, and local. Besides, the least is a more preferable option taking into account capital expenditure for construction and operation, and also it can lead to solid resource-saving as a result of the electric energy saving going for water heating in heaters. Automatic machines of drinking water for a local water supply system of a special purpose have indisputable advantages. They are capable to carry out several functions at the same time, and also to distribute water to consumers. It allows placing all the necessary equipment, which will be well in harmony with the environment in their small and compact case, and will fit into any difficult interior of the room. Also they are very easily connected to the systems of an internal water supply system by means of a propylene tube that allows to change their sposition in space and to transfer to any place of the room with fast installation of equipment. Also the ecological effect was proved upon transition from coolers on machine guns of drinking water that allowed refusing the order of plastic bottles, which after use start accumulating on dumps, polluting the environment.

DOI: 10.22227/1997-0935.2014.9.76-81

References
  1. Orlov E.V. Sistema vnutrennego vodoprovoda. Novyy tip vodorazbornykh priborov v zdaniyakh. Avtomaty pit'evoy vody [System of an Internal Water Supply System. New Type of Water Folding Devices in Buildings. Drinking Water Machine]. Tekhnika i tekhnologii mira [Equipment and Technologies of the World]. 2013, no. 1, pp. 37—41.
  2. Jegatheesan V., Kim S.H., Joo C.K. Evaluating the Drinking Water Quality through an Efficient Chlorine Decay Model. Water Science and Technology. Water Supply. 2006, vol. 6, no. 4, pp. 1—7. DOI: http://dx.doi.org/10.2166/ws.2006.774.
  3. Isaev V.N., Chukhin V.A., Gerasimenko A.V. Resursosberezhenie v sisteme khozyaystvenno-pit'evogo vodoprovoda [Resource-saving in system of an economic and drinking water supply system]. Santekhnika [Bathroom Fitments]. 2011, no. 3, pp. 14—17.
  4. 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.
  5. Orlov E.V. Vodo- i resursosberezhenie. Zhilye zdaniya kottedzhnykh i dachnykh poselkov [Water- and Resource-saving. Residential Buildings in Cottage and Housing Estates]. Tekhnologii mira [Technologies of the World]. 2012, no. 10, pp. 35—41.
  6. Peter-Varbanets M., Zurbr?gg 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.
  7. Brodach M.M. Zelenoe vodosnabzhenie i vodootvedenie [Green water supply and water disposal]. Santekhnika [Bathroom Fitments]. 2009, no. 4, pp. 6—9.
  8. Polak J., Bartoszek M., Sulkowski W.W. Comparison of Humificftion Processes during Sewage Purification in Treatment Plant with Different Technological Processes. Water Research. Sep. 2009, vol. 43, no. 17, pp. 4167—4176.
  9. Isaev V.N., Presnov V.A. Problemy vodosnabzheniya i vodootvedeniya sovremennoy maloetazhnoy zastroyki v Rossii i idei po uluchsheniyu situatsii v etoy sfere [Problems of Water Supply and Water Disposal of Modern Low Building in Russia and Ideas on Improvement of a Situation in this Sphere]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 2, pp. 154—161.
  10. Tchobanoglous G., Leverenz H.L., Nellor M.H., Crook J. Direct Potable Reuse: The Path Forward. WateReuse Research Foundation and Water Reuse California, Washington, DC, 2011, 114 p. Available at: http://www.deq.idaho.gov/media/829260-direct-potable-reuseconference-2012.pdf. Date of access: 25.07.2014.
  11. Pervov A.G., Andrianov A.P., Spitsov D.V. Vodo- i energosberezhenie v gorodskom khozyaystve. Primenenie sovremennykh membrannykh tekhnologiy [Water- and Energy Saving in Municipal Economy. Application of Modern Membrane Technologies]. Santekhnika [Bathroom Fitments]. 2013, no. 6, pp. 30—36.
  12. Takacs I., Vanrolleghem P.A., Wett B., Murthy S. Elemental Balance Based Methodology to Establish Reaction Stoichiometry in Environmental Modelling. Water Science & Technology. 2007, vol. 56, no. 9, pp. 37—41. DOI: http://dx.doi.org/10.2166/wst.2007.606.
  13. Andrianov A.P. Doochistka moskovskoy vodoprovodnoy vody: primenenie membrannykh tekhnologiy [Tertiary Treatment of the Moscow Tap Water: Application of Membrane Technologies]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 4, vol. 2, pp. 16—20.
  14. Brodach M.M. Ot vodosberezheniya k zdaniyu s nulevym vodopotrebleniem [From Water Savings to a Building with Zero Water Consumption]. Santekhnika [Bathroom Fitments]. 2010, no. 6, pp. 4—7.
  15. 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.

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DRINKING WATER PURIFICATION FROM STRONTIUM BY THE FILTRATION METHOD USING CLINOPTILOLITE

Vestnik MGSU 4/2017 Volume 12
  • Shcherbakov Vladimir Ivanovich - Voronezh State Technical University (VSTU) Doctor of Technical Sciences, Professor of Department of Hydraulics, Voronezh State Technical University (VSTU), 14 Moscow Avenue, Voronezh, Russian Federation, 394026.
  • Al'-Amri Zaed Sadik Abrahem - Voronezh State Technical University (VSTU) Graduate Student of Department of Hydraulics, Water Supply and Water Disposal, Voronezh State Technical University (VSTU), 14 Moscow Avenue, Voronezh, Russian Federation, 394026.
  • Mikhaylin Aleksey Viktorovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Senior Lecturer of the Department of Water Supply and Water Disposal, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, Russian Federation, 129337.

Pages 457-463

At present, the term “water hardness” is used to describe the total concentration of calcium, magnesium, and strontium in equivalent terms. Strontium is close to calcium by its chemical properties but differs from it dramatically by the biological effect. Long-term use of water with an increased content of strontium (Sr) leads to the development of various diseases among the population. Especially, it is dangerous for children. Strontium refers to the sanitary-toxicological hazard class by the limiting harmfulness indicator. The aim of the studies was to determine the effectiveness of stable strontium sorption on clinoptilolite in conditions of increased groundwater hardness. Based on experimental studies on the laboratory clinoptilolite filter, the output dependences of the residual concentration of hardness and strontium in the filtrate on the relative volumes of the filtrated water were plotted. As a result of the research, positive results of application of clinoptilolite of Kholinsky deposit were obtained.

DOI: 10.22227/1997-0935.2017.4.457-463

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