Question 2022 of 234 · California Wastewater Operator Exam
Nitrification in an activated sludge plant consumes about how much alkalinity per mg/L of ammonia nitrogen oxidized?
Exactly one answer is correct.
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Correct answer to question 2022
- A: About 7.14 mg/L as CaCO3
Explanation
Oxidizing ammonia to nitrate uses roughly 7.1 mg/L of alkalinity per mg/L of NH3-N, which can drop pH if the wastewater is poorly buffered.
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