Explore BrainMass

# Calculation of settling tank size

Not what you're looking for? Search our solutions OR ask your own Custom question.

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

6.10) A final settling tank for a 2-million-gallon-per-day (2mgd) activated-sludge treatment plant it to be designed to have an average overflow rate of 800 g/day-ft^2. the tank needs to have a minimum detention time of 2.0 hr and to allow proper settling it must be at least 11 ft deep. If the tank is circular, what should its diameter and depth be?

https://brainmass.com/chemistry/chemical-kinetics/calculation-settling-tank-size-88121

#### Solution Preview

Detention time is the volume of the cylinder divided by the outflow. The surface overflow rate is the influent flow divided by surface area. So you have two equations:
t = V/Q
Q = ...

#### Solution Summary

The solution determines the size needed for settling tank given flow rate and detention time.

\$2.49