1. Two circular setting basins operating in parallel are to be designed for treating 40,000 m³/d of coagulated water. Each basin in 2.3 meters deep and has a single peripheral

weir attached to its outside wall. Vo = 0.6 m/h (a) Determine the diameter of each basin in meters (b) Calculate the detention time of each basin in hours (c) Calculate the weir loading rate (m³/d-m)