Determine the solids retention time (SRT) using the data below. Use th retention time equation that uses combined aeration tank and final clarifier vo- estimate system solids. Aerator volume = 250,000 gal MLSS=2750 mg/L Final clarifier volume = 110,000 gal WAS SS = 5410 mg/L Population equivalent flow = 2.35 MGD Secondary effluent (SS) = 16 mg L WAS pumping rate = 19,200 gpd

Composite materials are formed by merging two components that have different chemical and physical properties. The merged output is termed as a composite, whose properties are completely different from the individual components. Composite materials also …