3. An air flocculation system is to be designed (T=20 °C). If a Gvalue of 60 s- is to be used, estimate the air flowrate that willbe necessary for a

200 m³ flocculation chamber. Assume thedepth of the flocculation basin is to be 4 m. The viscosity ofwater @ 20 °C = 0.001 N-s/m?.