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Rotary lobe pumps help solve difficult biosolids pumping application requirements

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By Jeff Bye

Operations staff at one wastewater treatment plant were initially using a reciprocating pump to move raw sludge and biosolids from primary clarifiers to the anaerobic digesters. The percentage of solids was approximately 4% by volume and, in some cases, could get as high as 6% by volume. Due to the lack of a screen, the size of the solids could not be controlled, which often caused the pump to jam.

Read the full article in ES&E Magazine’s February 2022 issue:

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