Question 9017 of 234 · California Wastewater Operator Exam
A trickling filter receives 0.8 MGD with 150 mg/L BOD. Its media volume is 40,000 ft3. What is the organic loading in lbs BOD/day/1,000 ft3?
Exactly one answer is correct.
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Correct answer to question 9017
- A: 25.0
Explanation
BOD load = 8.34 x 0.8 x 150 = 1,000.8 lbs/day. The media is 40 units of 1,000 ft3, so 1,000.8 / 40 = 25.0 lbs BOD/day/1,000 ft3.
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