The solids flux curve shown in Figure Q4 is obtained from a series of batch settling tests for the design [20 marks] of a secondary clarifier of an activated sludge process ii) Determine the clarification and thickening area and the underflow concentration of the secondary clarifier for this and thickening area and the underflow concentration of the rate to the clarifier is 20MGD, the MLSS of the aeration tank is 4000mg/L, and the underflow iii) How many torf velocity is 9.5m/d [17 marks] design with a diameter of 15m. The solids flux curve shown in Figure Q4 is obtained from a series of batch settling tests for the design [20 marks] of a secondary clarifier of an activated sludge process ii) Determine the clarification and thickening area and the underflow concentration of the secondary clarifier for this and thickening area and the underflow concentration of the rate to the clarifier is 20MGD, the MLSS of the aeration tank is 4000mg/L, and the underflow iii) How many torf velocity is 9.5m/d [17 marks] design with a diameter of 15m