Hybrid Blowers: Should WWTPs Believe The Hype?

In 2010, an energy analysis of the Freeport Wastewater Treatment Facility in southern Maine revealed that the plant had significant inefficiencies in usage. Specifically, the plant’s 30-year-old multistage centrifugal aeration blowers were accounting for as much as 90 percent of electricity consumption.

The engineering firm Woodard & Curran, contracted to identify and implement improvements, replaced the aging multistage blowers with Aerzen Delta Hybrid blowers. Brian Cataldo, project engineer at Woodard & Curran, said of the choice, “The big benefit was the ability for this blower to move the same amount of air of a traditional positive displacement (PD) blower could with less energy input. This whole project was driven by electrical energy savings."

And how much energy was saved? What about the dollar value and payback period? Find out by listening to this Water Online Radio Case Study.