Environment & Ecology · Environment
Biochemical Oxygen Demand (BOD) is a key indicator of the process performance of wastewater treatment plants. The plant is said to be efficient when the effluent BOD:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1remains unchanged
- 2increases
- 3increases for the first 36 hours
- 4decreases✓
Correct answer
decreases
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