Calculation on Show calculation to have the full credit If a

Calculation on: (Show calculation to have the full credit) If a 1.0 m \'/s flow water treatment plant uses 10 tion basins with an overflow rate of 1S m\'/d-m2, what bi a be the surface area (m2) of each tank? (a) 5760 m (d) 576m (c) 960 m2 12. Calculate the theoretical percent of particles having a settling velocity of 0.25 cm/s in a horizontal flow clarifier with an overflow rate of 0.05 cm/s. (a) 100% (b) 209% (c) 50 % (d) 1.25%. 13. water is treated with 40 mg/l of ferric chloride for turbidity coagulation, how much alkalinity will be consumed as Caco,? (a) 45.1 mg/L (b) 36.9 mg/L (c) 15.0 mg/l (d) 73.9 mg/L Fecht ????, +3H20++ Fe(OH), 3H,0(s) +3CO2 +3Cr

Solution

11) surface are = Flow/over flow rate

= 1*60*60*24/(15)

=5760 m2 (option A is correct.)