Saving Energy in Council Bluffs: Trickling Filter Recirculation Pump Station MCC Replacement

9 WGG - Saving Energy.pdf

This project was initiated by FOX to assist the city in obtaining additional grant funds for Green energy efficiency. In 2009, the city of Council Bluffs WPCP staff requested a plan to upgrade the trickling filter recirculation pump station and replace the motor control center.

The five large trickling filter recirculation pumps (150-200 hp each) and two humus return pumps (40 hp each) were paired with adjustable frequency drives to pace flow based on process requirements and reduce energy consumption.  The more efficient drives and controls provide automatic operation at reduce costs. FOX completed the design and the project was bid and constructed in 2010.

This project was awarded an American Recovery and Reinvestment Act (ARRA) Green Project grant due to the decrease in energy consumption resulting from the improvements. In addition to the scope noted above, the plant effluent water pumps were replaced as part of the project to increase the pressure and capacity for use throughout the plant. Adjustable frequency drives were also installed on these pumps to provide better operation and reduced energy consumption.

Contact:
FOX Engineering Associates, Inc.
Winnie G. Gleason, P.E.
800.433.3469
www.foxeng.com