Design the first compartment of a cross-flow paddle flocculator for the city of Somesuch...

Design the first compartment of a cross-flow paddle flocculator for the city of Somesuch by determining the basin dimensions, the paddle configuration, the power requirement, motor power, and rotational speeds for the following parameters:

Design flow rate = 28.8×10³m³/d

t = 25 min

Three flocculator compartments with G = 50, 40, 20 s^–1

For each compartment L = W

Water temperature = 5^oC

Assume the design recommendations in Table 3-7 apply

To complete the design, provide a dimensioned sketch of the basin and wheels.

Hint: for a first trial assume a wheel diameter of 3.0 m.

Table 3-7