This Plant is Conquering CSOs With a Wet-Weather Clarifier

A high-rate wet weather treatment system enables an Ohio utility to conquer CSOs and meet its compliance deadline.
This Plant is Conquering CSOs With a Wet-Weather Clarifier
March 2015 view of the 100 mgd WWETCO FlexFilter wet weather clarifier (WesTech Engineering).

Heavy rains flowing through the Ohio city of Springfield’s combined sewer system overwhelmed the wastewater treatment plant. The city averaged 50 to 70 CSOs per year, discharging up to 90 mgd to the Mad River.

In 2012, the city agreed with the Ohio EPA to build a 100 mgd...

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