Multiple choice

A horizontal flow primary clarifier treats waste water in which 10%, 60% and 30% of particles have settling velocities of 0.1 mm/s, 0.2 mm/s, 0.2 mm/s, and 1.0 mm/s respectively. What would be the total percentage of particles removed if clarifier operates at a Surface Overflow Rate (SOR) of 43.2 m3/m2.d?

  1. 43%

  2. 56%

  3. 86%

  4. 100%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 

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