Computer · Environmental Engineering
Which one of the following is defined as the oxygen required by microorganisms to carry out the biological decomposition of dissolved or organic matter in water under aerobic conditions at a standard temperature and time?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Theoretical oxygen demand
- 2Total oxygen demand
- 3Chemical oxygen demand
- 4Biochemical oxygen demand✓
Correct answer
Biochemical oxygen demand
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