THEORETICAL ASPECTS OF WASTE WATER TREATMENT SYSTEMS OF RAPID FILTERS
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Abstract
The article presents the results of the development of the theory of formation, treatment and disposal of waste (flushing) water of rapid filters (contact clarifiers) from the water treatment plant. The stages of the formation of waste (washing) waters, factors affecting the quality of the suspension at each stage are shown. A mathematical description of the formation of waste (washing) waters, transportation through industrial sewerage pipelines, taking into account the hydrodynamic effect on suspended particles and the type of reagent used for natural water purification is given. The treatment is described in two stages – mixing in the flocculation chamber and settling under static conditions. An algorithm is proposed for selecting the technological scheme for the treatment of flushing water of rapid filters, depending on the direction of disposal.
Subject of research. Waste water treatment systems of rapid filters as an integral part of a natural water treatment plant.
Materials and methods. The paper uses the theoretical provisions of the process of volumetric filtration by D.M. Mints, the theory of coagulation by M.S. Smolukhovsky and its developing works, the theoretical description of the process of sediment formation by N.Ya. Avdeev.
Results. The theoretical foundations of the formation, transportation, treatment and disposal of waste (washing) waters have been formed.
Conclusions. Based on the results of theoretical work, the stages of the life cycle of waste (washing) water of rapid filters (contact clarifiers) have been determined, theoretical provisions for the treatment of washing water have been developed, influencing factors on the quality of the suspension at each stage have been identified. A mathematical model of the processes of formation, transportation and processing in the flocculation chamber with subsequent static settling is obtained. The algorithm of selection of the technological scheme of treatment of washing waters of fast filters as a description of the process of disposal of waste (washing) waters is formed.
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Свод правил «Водоснабжение, наружные сети и сооружения»: СНиП 2.04.02-84*: [СП 31.13330 -2021]: дата введения 2022-01-28. М., 2022. 214 с.
Драгинский, В. Л. Обработка промывных вод фильтров водоочистных станций / В. Л. Драгинский, Л. П. Алексеева // Водоснабжение и санитарная техника. 2005. № 8. С. 25-32.
Урванцева, М. И. Обработка промывных вод и осадков водопроводных станций, расположенных на источниках малой и средней мутности и цветности: автореф. дис. … канд. техн. наук: 05.23.04 / Урванцева Марина Игоревна; Новосиб. гос. архитектур.-строит. ун-т. - Новосибирск, 2011. - 20 с.
Реконструкция сооружений повторного использования промывной воды фильтров станции обезжелезивания / Кармалов А. И., Найманов А. Я. [и др.] // Водоснабжение и санитарная техника. 2020. № 10. С. 14-20.
Бабенков, Е. Д. Очистка воды коагулянтами / Е. Д. Бабенков; АН СССР, Ин-т физ. химии. М.: Наука, 1977. 356 с.
Фрог, Б. Н. Водоподготовка / Б. Н. Фрог, А. Г. Первов: учеб. для вузов. М.: Издательство АСВ, 2015. 255 с.
Harris, H. S. Orthokinetic Flocculation in Water Purification / H. S. Harris, W. J. Kaufman, R. B. Krone // J. Sanit. Eng. Div., proc. Am. Soc. Civ. Eng. 1966. № 6. рр. 95.
Бутко, Д. А. Промывные воды скорых фильтров и их повторное использование: монография / Д. А. Бутко; Рост. гос. строит. ун-т. Ростов н/Д.: РГСУ, 2009. 121 с.
Кургаев, Е. Ф. Осветлители воды / Е. Ф. Кургаев. М.: Стройиздат, 1977. 192 с.
Клячко, В. А. Подготовка воды для промышленного и городского водоснабже-ния / В. А. Клячко, И. Э. Апельцин; Акад. строительства и архитектуры СССР. Всесоюз. науч.-исслед. ин-т водоснабжения, канализации, гидротехн. сооружений и инженерной гидрогеологии «ВОДГЕО». М.: Госстройиздат, 1962. 819 с.
Butko, D.A., Volodina, M.S. Regularities of rapid filter backwash water сlarification in reagent-free mode. Magazine of Civil Engineering. 2022. 111(3). Article No. 11107. DOI: 10.34910/MCE.111.7