Using Table 3-4 , select a combination of in-line blenders to mix ferric chloride with a...

Using Table 3-4 , select a combination of in-line blenders to mix ferric chloride with a design flow rate that varies from a minimum of 8,200 m³/d in winter to a maximum of 49,200 m³/d in summer. The design water temperatures are 4^o C in the winter and 15^o C in the summer. The plant will operate 8 hours per day for seven days per week in the winter and 24 hours per day for seven days per week in the summer. Assume that the water power is 80% of the motor power and that the mixing time must be between 0.3 and 0.8 s. Because this problem will require some iteration, a spreadsheet solution is highly recommended.

Table 3-4