Question 3009 of 234 · California Wastewater Operator Exam
The most common cause of odors from a preliminary treatment area is
Exactly one answer is correct.
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Correct answer to question 3009
- B: septic wastewater and decaying screenings or grit
Explanation
Old, anaerobic wastewater and decaying organic matter on screenings produce hydrogen sulfide and other odors. Frequent removal and washing of screenings helps.
More questions: Preliminary and Primary Treatment
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