Question 4020 of 234 · California Wastewater Operator Exam
Which problem often occurs in trickling filters when the hydraulic loading is too low?
Exactly one answer is correct.
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Correct answer to question 4020
- D: Ponding and fly nuisance or odors
Explanation
Low flushing allows the slime to grow thick and plug the voids, causing ponding, odors and psychoda flies. Increasing recirculation raises the hydraulic loading.
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