Safely Cleaning Clarifiers: Taming A “Real Beast”

Exercise 1Primary Clarifier- A primary clarifier is to be designed to treat an industrial wastewater having 320 mg / l suspended solids and a flow of 7570  m^3 / day. A batch settling test was performed using a 205-mm-diameter column that was 3.05 m long and had withdrawal ports every 0.61 m . The reduced data giving the percent removal are shown- Determine:1. The design detention time and design surface loading rate if 65 % of the suspended solids are to be removed.2. The diameter and depth of