Case Study

Columbiana, AL – Biolac Rebuild

Columbiana, AL – Biolac Rebuild

The customer The City of Columbiana is located 25 miles southeast of Birmingham, AL in Shelby County and is home to approximately 4,200 residents. In 1988 the city installed a Parkson Biolac-R activated sludge process with integral clarifier having the following design parameters: Influent Effluent Design Flow Rate 0.75 MGD BOD (5) 200 mg/l 15 mg/l TSS 200 mg/l 15 mg/l NH3 25 mg/l 3 mg/l During the early years of operation, the Biolac was sim

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