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The BOD after the filtration of sewage from the low rate trickling filter is
- a)40-50%
- b)80-90%
- c)70-80%
- d)90-99%
Correct answer is option 'B'. Can you explain this answer?
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The BOD after the filtration of sewage from the low rate trickling fil...
Explanation: The BOD of the effluent obtained after the filtration of sewage from the low rate trickling filter is between 80 to 90% and the effluent obtained is highly nitrified and stabilized.
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The BOD after the filtration of sewage from the low rate trickling fil...
Explanation:
1. Introduction:
The Biological Oxygen Demand (BOD) is a measure of the amount of oxygen consumed by microorganisms in the process of decomposing organic matter in water. It is an important parameter to assess the pollution levels in water bodies and the effectiveness of wastewater treatment processes.
2. Filtration of Sewage:
The filtration of sewage is a common method used in wastewater treatment plants to remove suspended solids and other impurities from the wastewater. One of the filtration methods used is the low rate trickling filter, which involves passing the sewage through a bed of rocks or other media, allowing the microorganisms to attach and grow on the surface.
3. BOD Removal Efficiency:
The BOD removal efficiency of a wastewater treatment process indicates the percentage of organic matter (measured in terms of BOD) that is removed during the treatment process. In the case of the low rate trickling filter, the BOD removal efficiency is estimated to be in the range of 80-90%.
4. Factors Affecting BOD Removal:
Several factors can affect the BOD removal efficiency in a low rate trickling filter, including the design and operation of the filter, the characteristics of the wastewater, and the temperature. The filter media, flow rate, and hydraulic loading rate are important parameters to consider in achieving optimal BOD removal.
5. Mechanism of BOD Removal:
In a low rate trickling filter, the organic matter present in the sewage serves as a food source for the microorganisms attached to the filter media. These microorganisms metabolize the organic matter, consuming oxygen in the process. As the sewage passes through the filter, the microorganisms break down the organic matter, reducing the BOD levels in the effluent.
6. BOD Removal Efficiency Range:
Based on the performance data of low rate trickling filters in wastewater treatment plants, it has been observed that the BOD removal efficiency can range from 80% to 90%. This range indicates that the majority of the organic matter in the sewage is effectively removed during the filtration process.
7. Conclusion:
In conclusion, the BOD removal efficiency after the filtration of sewage using a low rate trickling filter is estimated to be in the range of 80-90%. This indicates that the filter is effective in removing a significant amount of organic matter from the wastewater, thereby reducing its pollution levels.
1. Introduction:
The Biological Oxygen Demand (BOD) is a measure of the amount of oxygen consumed by microorganisms in the process of decomposing organic matter in water. It is an important parameter to assess the pollution levels in water bodies and the effectiveness of wastewater treatment processes.
2. Filtration of Sewage:
The filtration of sewage is a common method used in wastewater treatment plants to remove suspended solids and other impurities from the wastewater. One of the filtration methods used is the low rate trickling filter, which involves passing the sewage through a bed of rocks or other media, allowing the microorganisms to attach and grow on the surface.
3. BOD Removal Efficiency:
The BOD removal efficiency of a wastewater treatment process indicates the percentage of organic matter (measured in terms of BOD) that is removed during the treatment process. In the case of the low rate trickling filter, the BOD removal efficiency is estimated to be in the range of 80-90%.
4. Factors Affecting BOD Removal:
Several factors can affect the BOD removal efficiency in a low rate trickling filter, including the design and operation of the filter, the characteristics of the wastewater, and the temperature. The filter media, flow rate, and hydraulic loading rate are important parameters to consider in achieving optimal BOD removal.
5. Mechanism of BOD Removal:
In a low rate trickling filter, the organic matter present in the sewage serves as a food source for the microorganisms attached to the filter media. These microorganisms metabolize the organic matter, consuming oxygen in the process. As the sewage passes through the filter, the microorganisms break down the organic matter, reducing the BOD levels in the effluent.
6. BOD Removal Efficiency Range:
Based on the performance data of low rate trickling filters in wastewater treatment plants, it has been observed that the BOD removal efficiency can range from 80% to 90%. This range indicates that the majority of the organic matter in the sewage is effectively removed during the filtration process.
7. Conclusion:
In conclusion, the BOD removal efficiency after the filtration of sewage using a low rate trickling filter is estimated to be in the range of 80-90%. This indicates that the filter is effective in removing a significant amount of organic matter from the wastewater, thereby reducing its pollution levels.
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The BOD after the filtration of sewage from the low rate trickling filter isa)40-50%b)80-90%c)70-80%d)90-99%Correct answer is option 'B'. Can you explain this answer?
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