Question 9023 of 234 · California Wastewater Operator Exam
Flow is 2.0 MGD, primary effluent BOD is 200 mg/L, the aeration tank is 0.8 MG, and MLVSS is 2,100 mg/L. What is the F/M ratio?
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Correct answer to question 9023
- D: 0.24
Explanation
Food = 8.34 x 2.0 x 200 = 3,336 lbs BOD/day. Microorganisms = 8.34 x 0.8 x 2,100 = 14,011 lbs MLVSS. F/M = 3,336 / 14,011 = 0.24.
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