Temat: sedimentation tank - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wastewater Treatment Methods and Sewage Treatment Facilities in Almaty, Kazakhstan
Autorzy:: Ospanov, Kairat
Kuldeyev, Erzhan
Kenzhaliyev, Bagdaulet
Korotunov, Anatoly
Powiązania:: https://bibliotekanauki.pl/articles/2025747.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater
sedimentation tank
aeration tank
water quality
wastewater storage
Opis:: The results of comprehensive research on the status of sewage treatment in Almaty are presented in this article. The results of the reconstruction and modernization of treatment facilities intended to improve the sewage treatment efficiency, including the results of pretreatment of wastewater with excess sludge in the primary clarification tank, and the results of hydrobiological and microbiological analysis of activated sludge in the aeration tank are presented. The analysis of the study results of the chemical composition of incoming, clarified and treated wastewater is presented. Besides, the results of the analysis of the water balance of wastewater are presented.
Źródło:: Journal of Ecological Engineering; 2022, 23, 1; 240-251
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Experience of Suckling Perfection of Secondary Clarifier of Aeration Station in Almaty, Kazakhstan
Autorzy:: Ospanov, K. T.
Demchenko, A. V.
Kudaiberdi, Z.
Powiązania:: https://bibliotekanauki.pl/articles/123839.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: water disposal
waste water
secondary sedimentation tank
activated sludge
cesspool emptier
sucker
Opis:: This article presents the results of experimental studies pertaining to the suckling improvement of secondary clarifier in an aeration station in Almaty. According to the obtained research results, the work of secondary clarifiers was evaluated for the removal of suspended solids, concentration of returned sludge and sediment moisture. The technical specifications of aerations, secondary settling tanks and cesspool emptier in the aeration station of Almaty were defined. Additionally, it was shown that the use of the articulated sucker with movable scrapers can increase the efficiency of cleaning the bottom of the circular tanks. In this practical test, the proposed suckling radial settler in aeration station of Almaty during the year showed that the sucker reduces the costs for the installation and maintenance of cesspool emptier and has no damaging effects on the bottom of the sump.
Źródło:: Journal of Ecological Engineering; 2018, 19, 5; 210-218
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Calculation of effective hydraulic parameters of concrete irrigation canals
Autorzy:: Fatxulloyev, Alisher
Rakhimov, Qudratjon
Allayorov, Davronjon
Samiev, Luqmon
Otakhonov, Makhsud
Powiązania:: https://bibliotekanauki.pl/articles/2203516.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: canal bottom relative width
concrete canal
irrigation canal
sediment transport capacity
sedimentation tank
best hydraulic section
trapezoidal shape
Opis:: When taking water from pre-mountain rivers, for transferring of large amounts of river sediments, rich in mineral fertilizers, along with water to crop fields through irrigation networks requires high sediment transport capacity and deformation resistance from irrigation networks. The projecting and construction of irrigation canals with these features in the foothills requires concreting the canal. The high content of river sediments in the Sokh River (5 kg∙m-3) and the low efficiency of the Right Bank Irrigation Reservoir (10-15%) require high hydraulic efficiency of water intake canals from this system. The main challenge is to reduce costs in concreted canals and ultimately ensure technical superiority. In the research were used generally accepted research methods in hydraulics, in particular field research and consequently, mathematical analysis. Kokandsay, Kartan and Bachkir irrigation canals were accepted as the object of research, the canals were designed on the basis of the best hydraulic section, the canal side slope was taken as a variable parameter and the technical and economic efficiency was checked using computer software. As a result, it was found that the consumption of concrete raw material for 1 running meter can save 0.2-0.3 m3, depending on the adoption of the canal side slope, the acceptance of the slope of the canal wall at values 1-1.5 will increase up to sedimentation 10%.
Źródło:: Journal of Water and Land Development; 2023, 56; 14--20
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The method of calculations of the sedimentation efficiency in tanks with lamella packets
Autorzy:: Kowalski, W. P.
Powiązania:: https://bibliotekanauki.pl/articles/241172.pdf
Data publikacji:: 2004
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: sedimentation efficiency
lamella tank
traditional tank with lamella modules
Opis:: The paper outlines a method to determine the sedimentation efficiency in modernized tanks with incorporated lamella packets. The method takes into account the properties of the suspension (density, viscosity, solid phase distribution and tank design parameters - flow intensity and settling surface). Several types of grain size distributions are considered: the log-normal distribution and generalised gamma distribution. The sedimentation efficiency is investigated in relation to the ratio of tank filling with lamella packets. The lamella ring width in a round Dorr clarifier is taken as an example. The analysis is performed by way of computer simulations. The applied calculation procedure was extensively verified in laboratory tests, pilot tests and industrial-scale tests (Kowalski 2000) and the obtained results were regarded as satisfactory. The error involved in calculations of the sedimentation efficiency is less than 0.05 when the efficiency value exceeds 0.8.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2004, 51, 4; 371-385
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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