Question 9019 of 234 · California Wastewater Operator Exam
A pond receives 0.3 MGD with a BOD of 180 mg/L. The pond surface area is 12 acres. What is the organic loading rate in lbs BOD/acre/day?
Exactly one answer is correct.
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Correct answer to question 9019
- C: 37.5 lbs/acre/day
Explanation
BOD load = 8.34 x 0.3 x 180 = 450.4 lbs/day. Loading = 450.4 / 12 acres = 37.5 lbs BOD/acre/day. Omitting 8.34 or the area division are the common mistakes.
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