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Questions and Answers
Which of the following best defines BOD in waste water?
Which of the following best defines BOD in waste water?
- The amount of oxygen required for the decomposition of non-biodegradable organic matter present in waste water
- The amount of oxygen required for the decomposition of inorganic matter present in waste water
- The amount of oxygen required for the decomposition of all matter present in waste water
- The amount of oxygen required for the decomposition of biodegradable organic matter present in waste water (correct)
What is the formula to calculate BOD5?
What is the formula to calculate BOD5?
- BOD5 = (DOi + DOf) × Dilution factor
- BOD5 = (DOi + DOf) / Dilution factor
- BOD5 = (DOi - DOf) / Dilution factor
- BOD5 = (DOi - DOf) × Dilution factor (correct)
What is deoxygenation in waste water?
What is deoxygenation in waste water?
- The addition of oxygen to waste water
- The process of removing inorganic matter from waste water
- The process of filtering waste water
- The depletion of DO content or exertion of BOD by microorganisms in waste water (correct)
