Wastewater from a peach packaging plant was tested in a pilot activated sludge plant, and the kinetic constants were calculated as:
Maximum growth rate constant = 3 day?1
Yield = 0.5
Half saturation constant = 400 mg/L
The influent BOD is 1500 mg/L, and a flow rate of 20,000 m3/day is expected. The aerators to be used will limit the suspended solids in the aeration tank to 4000 mg/L. The available aeration volume is 6000 m3. What efficiency of BOD removal can be expected?