Case Study

Renovation Of Pumping Station To Manage Unscreened Wastewater After Rainfall

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After heavy rainfall, rags that have settled inside the sewer pipes are transported into the pumping station and this causes a great trash volume within a short period. As a result, the installed pumps often failed due to clogging.

In this terminal pumping station there are three horizontal dry-installed wastewater pumps. The existing pumps were replaced step by step with new Sulzer submersible sewage pumps. Sulzer recalculated the duty points using two years’ flow data from the existing installation and selected new pumps with premium efficiency motors.

A complex control panel was designed for an optimum pump protection, controlling and monitoring three pumps with variable frequency drives (VFDs). The panel is programmed to operate the pumps close to the best efficiency point with the lowest possible energy consumption.

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Sulzer Pumps Solutions Inc.