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UDC 628.292.65.011.4

PANKOVA G. A., Il'in Iu. A., IGNATCHIK V. S., Ignatchik S. Iu., Melnik E. A., Probirsky M. D., Karmazinov F. V., Mikhailov D. M.

Technical inspection of sewage pumping stations in Saint-Petersburg

Summary

Basic results of technical inspection of the pumping stations delivering wastewater to the treatment facilities are presented. In the process of inspection the following parameters are determined: the impact of physical wear of the pumps on Н–Q, h–Q, P–Q, Wуд–Q characteristics; actual schedule of wastewater inflow; probability and parametric pump reliability factors. The operation of the «feeding sewer – sewage pumping station – pressure sewer» system is analyzed. The investment efficiency of upgrading the engineering aspect of the pumping stations with account of the safety requirements in relation to the environment, reliability and energy saving during the equipment life cycle is estimated.

Key words

wastewater , power consumption , operation expenditures , pumping station , net discounted expense , design mathematical model , reliability estimation

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