Question 6004 of 234 · California Wastewater Operator Exam
Which condition is the most likely sign of an upset digester?
Exactly one answer is correct.
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Correct answer to question 6004
- D: Rising volatile acids with falling pH and gas production normally
Explanation
Methane formers fail to consume the acids, so pH drops and gas production declines. The digester is called sour.
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