2.5.4 Diameter of the Flocculation Tank

Thickness of the Inlet Pipe = ½”
Dia of the inlet Pipe = 2.5 Ft
Thickness of concrete wall = 12”
Outside diameter of concrete wall (Dp) = (30”+ 1”+24”)
= 4.5 Ft
Let inside diameter of Flocculation Tank = D
Area of Flocculation Tank = 848.73 Sft

3.14 (D2 - Dp2) /4 = 848.73
3.14 (D2 - 4.502)/4 = 848.73
D2 = 848.73 x4 / 3.14 + 4.252
Diameter of the Flocculation Tank = 33.15 Ft
= 33’- 2”

Each Flocculation Tank shall be provided with 2 No Slow Speed Paddle Mixers called Flocculator each mounted on a central rotating double arm bridge.