Photochemical reactor modeling: a case-study problem. Although radiation is important in heat transfer, an analogous model can be used in the design of photochemical reactors. The modeling of these reactors….
Determine thediameter (ft) of the gravity thickener considering both the solids loading rate and overflow rate.
A lime softening sludge flow of 30,000 gpd is gravity thickened from 2.0% to 5.0% in a mechanical gravity thickener. The gravity thickener is to be designed using a solids loading rate of 10 lb/(ft2⋅d) and a solids capture of 85%. Assume that the thickener has a side water depth (SWD) of 10 ft, an overflow rate of 500 gpd/ft2 will be used in design, and that the specific gravity of all sludge streams is approximately 1. Determine the following:
a. The thickened sludge flow rate (gpd) if 800 mg/L of SS are contained in the supernatant.
b. The diameter (ft) of the gravity thickener considering both the solids loading rate and overflow rate.