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.

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