a) What are the benefits of Primary Sedimentation, explain the design criteria. For an water demand
Q_(inf)=0.41(m^(3))/(s)
calculate the need dimension of cylindrical primary settling by given depth of 4 m for both and the
SOR=60(m^(3))/(d)/m^(2)
. Calculate also the dimension of the primary sludge if the BOD concentration
400m(g)/()