In 2019, the City of East Peoria, IL, began a comprehensive modernization of its wastewater infrastructure, including a $68 million upgrade covering two operating facilities, Wastewater Treatment Plant No. 1 and Wastewater Treatment Plant No. 3. The project addressed aging equipment, regulatory pressure and the need for improved process control.

From managing complex wastewater streams to protecting stored grain and sustaining fish health, effective airflow is essential to maintaining product quality and operational stability. How advances in blower technology, diffuser materials and automated controls are helping facilities improve efficiency, reduce energy use and meet increasingly strict environmental requirements.

An aging 103 acfm oil-free rotary claw vacuum system was replaced with a skid-mounted duplex configuration featuring two 5.4 hp pumps, automated lead/lag controls and an inlet purge system to handle increased laboratory demand and prevent chemical contamination. The upgraded system delivers up to 106 acfm and 28”Hg, providing higher vacuum capacity, redundancy and improved operational stability within a constrained mechanical room footprint.

As the Best Practices Magazines celebrate their twentieth anniversary, we wanted to take a moment to reflect on the remarkable system efficiency gains achieved since our first issue. We also wanted to give subscribers a peek at what the next decades might bring. To do this, we asked a hand-selected list of original equipment manufacturers, independent compressed air system sales and service companies, manufacturing plants and independent system auditors to share their thoughts, highlighting the changes they’ve seen over the past 20 years, then predicting what the next 20 years will bring.

This article examines how industrial facilities can quantify the return on investment associated with disciplined filter change scheduling. By connecting pressure drop, energy consumption, maintenance costs and equipment longevity, facilities can move from reactive maintenance to measurable operational control.