Question 4023 of 234 · California Wastewater Operator Exam
The purpose of the secondary clarifier is to
Exactly one answer is correct.
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Correct answer to question 4023
- D: separate the biological solids from the treated water
Explanation
Secondary clarifiers settle activated sludge or filter humus so that clear effluent leaves over the weirs. Settled solids are returned or wasted.
More questions: Secondary Treatment (Activated Sludge, Trickling Filters, RBC)
- 4024A sludge blanket that is rising too high in a secondary clarifier should be corrected by
- 4025Which is a sign of toxic shock to an activated sludge system?
- 4026Extended aeration plants typically operate with
- 4027A sequencing batch reactor (SBR) carries out its treatment steps
- 4028When dissolved oxygen in an aeration tank is too low, the most likely result is
- 4029Which of the following is true about return activated sludge concentration compared to mixed liquor?