CWLP Clarifiers Under Construction
CWLP Clarifiers Under Construction with Workers
Ongoing Conversion Initiative Yields Benefits Without Interruptions
Upgrades of Three Clarifiers
This project, completed in 2014, is the third conversion of a Spaulding clarifier to a helical upflow solids contact clarifier at the municipally-owned water treatment plant. The first-ever such retrofit was accomplished by Crawford, Murphy & Tilly (CMT) in 1999 followed by a second conversion in 2004. The actual cost of the replacement is less than that of a new unit. With the retrofit units, CWLP can now also treat more water to a higher quality, while using the same water treatment chemicals in all clarifiers.
The innovative upgrade increased clarifier capacity by 67%, from 6 MGD to 10 MGD, while retaining the original 70-foot-diameter footprint on a constrained site. In addition, the upgrade eliminated motor-driven scraper components, promoted improved treatment chemical performance, reduced clarifier effluent turbidity and increased removal of organics while reducing maintenance costs.