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The Second stage BoD is due to
- a)Experiemental error
- b)Increased activity of bacteria
- c)Nitrification demand
- d)Interference by certain chemical reactions
Correct answer is option 'C'. Can you explain this answer?
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The Second stage BoD is due toa)Experiemental errorb)Increased activit...
Explanation:
The Second stage BoD (Biochemical Oxygen Demand) is a measure of the amount of oxygen required by microorganisms to biologically degrade organic matter in wastewater. The second stage BoD is due to nitrification demand.
Nitrification is the biological oxidation of ammonia to nitrite and nitrite to nitrate. This process is important in wastewater treatment because it removes nitrogen from the wastewater, which can be a pollutant. Nitrification requires oxygen, and therefore contributes to the second stage BoD.
The increased activity of bacteria in the second stage also contributes to the second stage BoD. As organic matter is degraded in the first stage, the bacteria population increases, and this population continues to consume oxygen in the second stage.
Chemical reactions can also interfere with the measurement of the second stage BoD, but this is not the primary reason for the high BoD. Therefore, option C is the correct answer.
The Second stage BoD (Biochemical Oxygen Demand) is a measure of the amount of oxygen required by microorganisms to biologically degrade organic matter in wastewater. The second stage BoD is due to nitrification demand.
Nitrification is the biological oxidation of ammonia to nitrite and nitrite to nitrate. This process is important in wastewater treatment because it removes nitrogen from the wastewater, which can be a pollutant. Nitrification requires oxygen, and therefore contributes to the second stage BoD.
The increased activity of bacteria in the second stage also contributes to the second stage BoD. As organic matter is degraded in the first stage, the bacteria population increases, and this population continues to consume oxygen in the second stage.
Chemical reactions can also interfere with the measurement of the second stage BoD, but this is not the primary reason for the high BoD. Therefore, option C is the correct answer.
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The Second stage BoD is due toa)Experiemental errorb)Increased activity of bacteriac)Nitrification demandd)Interference by certain chemical reactionsCorrect answer is option 'C'. Can you explain this answer?
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