Case Study

Activated Sludge Plant

Activated Sludge Plant

Waste Type: Municipal Flow: 5 MGD Problem: A high level of incoming grease and filamentous bacteria caused this activated sludge plant to have difficulty settling. In addition, they were looking at ways of reducing the high cost of dealing with secondary sludge. Total suspended solids in the effluent were 12-16 ppm and polymer was being added to improve settling. Sludge was filter pressed to produce a dry cake of 15-17% solids cont

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