John O’Reilly and John Rowe, Schneider Electric

VFDs Speed Up Wastewater Processing

The operators of the Bellingham, WA, wastewater treatment plant are constantly seeking new ways to improve production to serve a growing population base, without dramatically increasing operating costs. In late 2006, they undertook an upgrade that helped them make a major advance. Constructed in 1974 with a secondary plant upgrade in 1992, Bellingham’s current wastewater treatment plant ...