Problem:
Question 1: A domestic wastewater contains 250 g/m^3 of suspended solids. if 65% of the solids are removed during primary sedimentation, what volume of solids (sludge) would result from a flow of 4000 m^3/d if the concentration of solids in the sludge is 5.5%
Question 2: The recommended chlorine dosage for effluent disinfection is 4 mg/l. What amount of chlorine is required for flows of?
a) 5000 m^3/d
b) 200 l/min
c) 0.5 m^3/s
Note: Please provide full description.