Tag:granular media

№12|2010

WASTEWATER TREATMENT

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UDC 628.315.3.004.1

Ulchenko V. M.

Wastewater Aftertreatment on Granular Bed Filters

Summary

Problems of the wastewater aftertreatment on granular filters of different design are described. Advantages of Ecopolymer drainage systems at reconstruction of these filters are shown. On the basis of generalization of its firsthand knowledge the Ecopolymer Group of Companies in the course of designing of wastewater aftertreatment uses rapid filters with descending filtration, air-water washing and rinse water low discharge system consisting of Ecopolymer sand-catching chutes and stream-guiding protuberances. Filters are equipped with the Ecopolymer drainage-distribution system consisting of drainage filters and Ecopolymer aerators. Conditions required for successful operation of wastewater aftertreatment rapid filters are defined. Results of operation of such filters designed by the Ecopolymer Company are presented.

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№2|2010

PROBLEMS, PERSPECTIVES

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UDC 628.16.067.1

Filatov A. I., SHAPOVALOV V. I., RAJKIN L. L.

Design Features and Experience of Porous Drainage Systems Operation in High-Rate Filters

Summary

Design features and multiyear experience in operation of porous drainage systems of two types in high-rate filters are expounded. Drainages ensure a high level of uniformity of washing across the filters’ area.

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№2|2011

WATER SUPPLY

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UDC 628.162.15

Nikitin A. M., Skolubovich Iurii, Voytov E. L.

Enhancement of Efficiency of Water Supply Stations Operation

Summary

Issues of intensification of processes of coagulation treatment of low-temperature, low-turbidity and high-chromaticity water from surface sources of water supply using the reactor-clarifiers of a new design are considered. The reactor-clarifier combines advantages of sludge blanket clarifiers and granular-bed filters, has a low operational cost and reliability. The efficient complex technology of treatment of potable water from surface sources developed on the basis of experimental studies is presented. This technology increases the efficiency of operation of reconstructed water supply stations at minimal working costs. The quality of potable water treated meets the specified requirements.

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