Question 6006 of 234 · California Wastewater Operator Exam
A digester that is sour can be corrected by
Exactly one answer is correct.
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Correct answer to question 6006
- A: reducing the feed rate and adding alkalinity such as lime or sodium bicarbonate
Explanation
Reduce the loading so the methane formers can catch up, and add alkalinity to raise pH. Sudden feed increases make the problem worse.
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