VALIDATION OF POROUS CONSTRUCTIONS OF FILTER STRUCTURES
DOI:
https://doi.org/10.31650/2786-6696-2025-11-115-122Keywords:
porous structures, mesh devices, rapid filter, hydraulic resistance coefficient.Abstract
Rapid filters are important in technological schemes for purifying natural waters. They provide the required water quality, useful capacity of water treatment plants, as well as required technical and economic value. One of the main structural elements of filters is the wash water drainage system.
The authors outlined the basic requirements for diverter systems, namely, uniform collection of wash water from the filter area and prevention of entrainment of the filter medium during washing. The article discusses two design options that fully meet these requirements: horizontal gutters with inclined meshes on their upper edges and porous polymer concrete pipes. The article provides data indicating that inclined grids and porous polymer concrete prevent grains of filter medium with a size of 0.5 mm from penetrating. Such medium is most commonly encountered in filtration structures of domestic drinking water supply systems.
An experimental comparison of porous and mesh devices in systems for removing wash water from rapid filters was carried out by comparing their relative coefficients of hydraulic resistance.
It has been established that the coefficients of hydraulic resistance of polymer concrete and mesh initially increase with further stabilization. At the same time, their maximum relative values differ significantly from each other: coefficients of hydraulic resistance for polymer concrete = 5.4; for mesh = 2110.
The result of the conducted experiments shows that the head loss in polymer concrete during filtration under conditions of suspended medium is approximately four times lower than in the mesh due to the clogging of mesh cells with sand particles, confirming the advantages of porous polymer concrete.
References
[1] S.M. Epoyan, V.D. Kolotilo. Vodopostachannya tа оchistka prirodnih vod. Kharkiv : "Faktor", 2015.
[2] A.K. Strelkov, "Zagryazneniye vodoyemov poverkhnostnym stokom", Vodosnabzheniye i sanitarnaya tekhnika, vol. 12, 2015.
[3] T.V. Kolesnikova, "Zashchita beregovykh vodozaborov ot popadaniya v nikh mekhanicheskikh vklyucheniy", Vestnik IrGTU, vol. 1, pp. 168-171, 2014.
[4] G. M. Matthews, "Improved bypass and collection system for protection of juvenile salmon and steelhead trout at lower granite dam", Mar. Fish. Serv., vol. 39, pp. 10-24, 2007.
[5] A. A. Kozhevnikov, N. A. Naumenko, "Analiz shiriny graviynoy obsypki graviynykh filtrov burovykh skvazhin", Sb. nauch. trudov PMITTIP, vol. 21, pp. 70-74, 2018.
[6] V. Progulny, N. Hurinchyk, I. Grachov, K. Borysenko, "Porous constructions of water intake structures", Vestnik Odesskoy gosudarstvennoy akademii stroitel'stva i arkhitekturi, vol. 81, pp. 149-155, 2020. https://doi.org/10.31650/2415-377X-2020-81-149-155.
[7] I. V. Mikheyeva, "Vodnyye ob’yekty i sostoyaniye vodosnabzheniya na territorii YUFO", Materialy KH Mezhdunar. nauch.-prakt. konf., 2017, pp. 145-155.
[8] P.A. Grabovskiy, U.A. Gorb, "Poristaya trubchataya konstruktsiya dlya predvaritel'noy ochistki vod", Visnik Odeskoi derzhavnoi akademii budivnitstva ta arkhitekturi, vol. 19, pp. 119-123, 2012.
[9] P.A. Grabovskiy, G.M. Larkina, "Intensifikatsiya vodoochistnykh filtrov", Vodosnabzheniye i vodootvod, vol. 6, pp. 38-48, 2016.
[10] S. Epoyan, A. Karahiaur, V. Volkov, S. Babenko, "Research into the influence of vertical drainage elements on the operational efficiency of rapid filters", Eastern-European Journal of Enterprise Technologies, vol. 1(10), pp. 62–69, 2018. https://doi.org/10.15587/1729-4061.2018.123559.
[11] V.I. Progulny, M.V. Ryabkov, "Obosnovaniye vybora polimerbetonnogo drenazha v fil'trakh s plavayushchey zagruzkoy", Visnyk Odeskoi derzhavnoi akademii budivnitstva ta arkhitektury, vol. 59, pp. 106-110, 2015.
[12] V.I. Progulny, M.V. Ryabkov, "Podbor krupnosti zapolnitelya poristogo polimera betona v penopolisterol'nykh fil'trakh", Nauchno-tekhnicheskiy sbornik "Problemy vodosnabzheniya, vodootvedeniya i gidravliki", vol. 26, pp.77-82, 2016.
[13] V. Progulny, M. Ryabkov, K. Borysenko, I. Grachov, "Theoretical and experemential study of mud injection porous drainage in filters with floating loading", TEHNIČKI GLASNIK (Technical journal) – Varaždin (Croatia), vol. 12, pp. 231-235, 2018.
[14] V. Progulny, N. Hurinchyk, I. Grachov, I. Karpov, K. Borysenko, "Mathematical Model of Fast Filters Drainage Work with Floating Load", 5th International Scientific and Practical Conference “Innovative Technology in Architecture and Design”. Kharkiv, 2023. pp. 040020-1- 040020-7.
[15] A. Kravchuk, G. Kochetov, O. Kravchuk, "Improving the calculation of collecting perforated pipelines for water treatment structures", Eastern-European Journal of Enterprise Technologies, vol. 6, no. 10(108), pp. 23–28, 2020.
[16] S. Epoyan, A. Karahiaur, V. Volkov, S. Babenko,"Research into thein fluence of vertical drainage elements on the operation alefficiency of rapid filters", Eastern-European Journalof Enterprise Technology, no. 1/10 (91), pp. 62-69, 2020.
[17] B. Schultz, D. DeWrachien, "Irrigation and drainage systems research and development in the 21st century", Irrigation and Drainage, vol.51, no. 4, pp. 311-327, 2021.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 MODERN CONSTRUCTION AND ARCHITECTURE
This work is licensed under a Creative Commons Attribution 4.0 International License.
