John O'Connor

Air-Assisted Filter Backwash (Air Scour)

Blog Post created by John O'Connor on Apr 4, 2012

Benefits of Air-Assisted Backwash of Granular Filter Media - A Slide ShowTom & Tim.JPG


This presentation summarizes comparative operational performance data stemming from a water treatment plant filter upgrade completed in 2009. It illustrates the installation of air-assisted backwash (air scour) and details the resulting changes in backwash protocols. The paper also quantifies the economic benefits of the upgrade in terms of reduced backwash water use and reduced frequency of filter backwashing. A series of slides illustrate the revised backwash process.


This work was presented by Tim Price, Senior Chemist, Associated Electric Cooperative, Inc., Thomas Hill Energy Center, Cliffton Hill, MO at the Joint Meeting of the Missouri Water Environment Association and the Missouri Section, American Water Works Association, March 25-28, 2012, Tan-Tar-A, Osage Beach, Missouri.