Question 5007 of 234 · California Wastewater Operator Exam
A pond that turns from green to gray or black and develops strong odors has most likely
Exactly one answer is correct.
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Correct answer to question 5007
- D: become anaerobic
Explanation
Loss of the algae bloom and oxygen shifts the pond to anaerobic conditions and produces sulfide odors. Reducing the load and adding aeration can help.
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