Better than Mobile

A passive dewatering device helps a city in Tennessee bring activated sludge inventory into its proper mixed liquor suspended solids range.

The Sewer Department of Lebanon, Tenn., operates an extended air-activated sludge treatment plant. Excess solids under aeration were cycling up, but the one-meter belt press could not run fast enough or long enough to dewater the inventory.

Superintendent Billy Dranes consulted...

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