Question 4024 of 234 · California Wastewater Operator Exam
A sludge blanket that is rising too high in a secondary clarifier should be corrected by
Exactly one answer is correct.
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Correct answer to question 4024
- B: increasing the RAS pumping rate or wasting more sludge as needed
Explanation
A deep blanket can overflow the weirs and cause high effluent TSS. Raising the return rate moves solids out of the clarifier, and wasting adjusts the total mass of solids.
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