Computer · Environmental Engineering
If Biochemical Oxygen Demand (BOD) removal efficiency of an aerobic process is 90%, find the effluent sewage BOD, given that the influent sewage BOD is 200 mg/L.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 125 mg/L
- 220 mg/L✓
- 330 mg/L
- 410 mg/L
Correct answer
20 mg/L
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