$21-13.$ Design a circular clarifier for a flow rate of $8,450\frac{m^3}{d}.$ Assume the following:

Center feed

Overflow rate $=30\frac{m^3}{d}*m^2$

Side water depth $=4\mathrm{.}3m$

Feedwell detention time $=20$min

EDI detention time $=10s$

Sludge hopper volume ~~$0\mathrm{.}5m^3$

To complete the design provide the following:

Diameter of tank

Diameter and depth of feedwell

Diameter and depth of EDI

Dimensions of sludge hopper

Check of velocity across sludge zone

Calculation of the weir loading rate

A sketch of the plan and profile with dimensions and a detail of the weir cross$-$

section configuration.