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UDC 628.162.15
Skolubovich Yu. L., Voytov E. L., Karmalov A. I., Skolubovich Yu. L.
Treatment and Utilization of Wash Water of High-Rate Filters of Deferrization Stations
Summary
Issues of the intensification of coagulation treatment processes of wash water of the deferrization station’s high-rate filters are considered. Shortcomings of the existing flow chart of treatment and the reuse of wash water of filtration stations are exposed. The scheme of the unit and results of experimental studies for selection of an efficient reagent, treatment and utilization of filters’ wash water are presented. A new technology of reagent clarification and multiple use of deferrization station’s wash water is offered.
Key words
coagulation , deferrization , clarification , sedimentation tank , wash water , rapid filter , utilization
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UDC 628.33.001.2
Ponomarev V. G.
Simulation and Calculation of Sedimentation Tanks
Summary
Results of the study of processes of water treatment for suspended substances are presented. In the course of calculation of facilities and apparatuses used for extraction of the suspended phase of contamination, it’s necessary to take into account its disperse composition, density, concentration, surface properties of the liquid phase and the indicator of flows dynamics.
Key words:
Agglomeration , suspended substances , diffusion , kinetics , sedimentation tank , filtrate
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UDC 628.336.57:628.162.52
Butko D. A., Lysov V. A.
Determination of Rheological Properties of Water Supply Sediments in Facilities Directly
Summary
Design of an instrument and a method of calculation for the determination of rhelogical properties of sediments directly in settling facilities are presented. Regularities of the change of sediment resistance to displacement depending on the depth of its position and distance from the beginning of a settling tank are revealed.
Key words
sludge , sedimentation tank , treatment facilities , resistance of sediment to displacement
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UDC 628.35: 661.5.63
Ospanov K. T., Elzhasov A. A.
Sewerage Treatment Facilities of the City of Astana (Kazakhstan)
Summary
The flow chart of biological treatment of municipal wastewater making it possible to increase the efficiency of removal of phosphorous compounds equally with the efficient removal of nitrogen compounds is offered. Advantage of this technology is possibility of reconstruction and modernization of operating treatment facilities with the maximum use of existing capacities. The technique of nitri-denitrification with a dephosphatation chamber is used at the operating facilities of the city of Astana. Zeolite of the Chankanayskoye deposit is used as a media. Zeolite intensifies the processes of advanced biological treatment of wastewater both for organic pollutants and biogenic elements.
Key words
nitrogen , aeration tank , biological treatment , suspended substances , sedimentation tank , wastewater , phosphorous
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UDC 628.32.004.69
Bagaev Yu. G., Veshkurtsev V. M., Gundyreva T. M., Khutornyuk G. N.
Modernization of Sewerage Treatment Facilities
Summary
The basic technical decisions and a description of the new equipment introduced at sewerage treatment facilities of the city of Novosibirsk are presented. It is told about the methods used when repairing pipelines and capacitive facilities. Modernization is carried out at all stages of treatment: at the main pumping station, mechanical and biological treatment facilities, sludge treatment facilities. Measures carried out make it possible to improve the quality of wastewater treatment, to reduce the discharge of polluting substances into the Ob. Modernization of the operating treatment facilities owing to the use of up-to-date equipment made it possible to improve the reliability of operation of the complex as a whole, to reduce the volume of sludge intended to further utilization, to reduce the negative influence on the environment and improve the city ecology.
Key words
intensification , methane tank , modernization , sludge dewatering , sedimentation tank , sewerage treatment facilities , grit chamber , grate , thickener , filter-press
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