Parameter & design criteria*

Equation* & obtained value

Design flow, Qave = 30,000 m3/day

Surface loading rate, SLR = 16 m3/m2・d

Area ( A ) = Q SLR = 1875 m 2

No. of Primary sedimentation tank = 2

Depth = 3.7 m

Diameter: D = 4 A π = 35 m

Weirloadingrate , WLR = 375 m 3 / m .d