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Licensing Exam Study Guide Secondary Clarifiers Sludge Alkalinity Coagulant/Flocculant

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WASTEWATER

By: Rick Lallish

It is generally accepted that the sludge blanket depth in secondary clarifiers should not exceed 2 feet (0.6 meters). By allowing a deeper sludge blanket, what undesirable outcome may occur?

A. Nitrification may occur in the secondary...

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