Tag:sand catching chamber

№4|2013

WASTEWATER TREATMENT

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UDC 628. 334.2.004.69

Kalinin A. V.

Hydraulic resistance of a traditional grit chamber

Summary

The experimental results of studying the grain-size distribution of sludge deposits in large combined sewers are presented. The curves of the grain-size distribution of sludge deposits are given. A formula calculating the hydraulic resistance of a traditional grit chamber in relation to the changes in dimensions in proportion to filling with sediments is proposed. Grit chambers are installed in large-size sewers upstream sewer siphons in the place of pollutants deposits accumulated because of grade reduction or local resistance.

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№7|2010

PROBLEMS, PERSPECTIVES

bbk 000000

UDC 628.334.2.004.69

Kalinin A. V.

Sand Catching Chamber of an Improved Design

Summary

An improved design of a chamber meant for catching of large fractions of pollutants of mineral origin (sand) by means of their sedimentation is offered. The chamber makes it possible to increase the transporting capacity of a surface wastewater flow in large collectors of a water disposal system without disturbance of its hydraulic conditions and sedimentation of suspended organic particles. A simple and economic scheme of sludge removal from the chamber is presented.

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