Question

Determine the dimensions (height, length, and width in ft) of a rectangular sedimentation basin with the following specifications – detention time: 4 hours, overflow rate: 700 gallons per day per ft2 , and length:width ratio of 3:1. The sedimentation basin is designed to take in 1.5 MGD.

Answer 1

Length = $\frac{3}{4}×700=525$

$Width = frac{1}{4}×700=233.33$