WWTP Tour - Influent Pumping

With the completion of preliminary treatment, the next step involves the separation of suspended and dissolved organic material from the wastewater stream. This is accomplished through secondary treatment. To get the wastewater there, the influent pump station provides the necessary hydraulic energy required to enter the secondary treatment section of the plant.

The influent pumping system consists of variable-speed centrifugal pumps. Under normal operation one pump operates as a lead or base pump, and the remaining are in backup duty if flow demands. The pumps automatically alternate by a sequence controller to change the order in which they are started, so as not to over use one pump.

So lets go to the Oxygen Trains