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Questions and Answers
What is the term used to describe the flow of sanitary sewage alone in the absence of storms in dry season?
What is the term used to describe the flow of sanitary sewage alone in the absence of storms in dry season?
- Sewage flow
- Stormwater flow
- Sanitary flow
- Dry weather flow (correct)
What percentage of the water supply may be expected to reach the sewers from the spent water of the community?
What percentage of the water supply may be expected to reach the sewers from the spent water of the community?
- 80% (correct)
- 90%
- 60%
- 70%
Which parameter is used in the conversion of contribution of wastes from industrial establishments for accepting into sanitary sewer systems?
Which parameter is used in the conversion of contribution of wastes from industrial establishments for accepting into sanitary sewer systems?
- Population equivalent (correct)
- Wastewater density
- Industrial flow rate
- Sewer capacity
What is generally assumed about the maximum daily flow compared to the average daily flow?
What is generally assumed about the maximum daily flow compared to the average daily flow?
How is the minimum daily flow usually estimated in relation to the average daily flow?
How is the minimum daily flow usually estimated in relation to the average daily flow?
What is a future period for which a provision is made in the water supply scheme known as?
What is a future period for which a provision is made in the water supply scheme known as?
What is the primary purpose of constructing a sewage treatment plant in phases?
What is the primary purpose of constructing a sewage treatment plant in phases?
Which method for estimating future populations involves a steady increase by a fixed amount over time?
Which method for estimating future populations involves a steady increase by a fixed amount over time?
What is NOT considered a wastewater characteristic critical for designing the activated sludge process?
What is NOT considered a wastewater characteristic critical for designing the activated sludge process?
What is the primary purpose of using medium screens in wastewater treatment?
What is the primary purpose of using medium screens in wastewater treatment?
How do fine screens differ from medium and coarse screens in wastewater treatment?
How do fine screens differ from medium and coarse screens in wastewater treatment?
What impact does a lower velocity through the screen have on its operation in a wastewater treatment plant?
What impact does a lower velocity through the screen have on its operation in a wastewater treatment plant?
How is head loss in a wastewater treatment plant affected by the quantity and nature of accumulated screenings?
How is head loss in a wastewater treatment plant affected by the quantity and nature of accumulated screenings?
Why are bar screens usually inclined or set at an angle in front of pumps or sedimentation tanks?
Why are bar screens usually inclined or set at an angle in front of pumps or sedimentation tanks?
What role does the available resources play in determining the design period of a sewage treatment plant?
What role does the available resources play in determining the design period of a sewage treatment plant?
Why is it necessary to estimate future populations when designing a sewage treatment plant?
Why is it necessary to estimate future populations when designing a sewage treatment plant?
What is a key consideration for natural evaporation of treatment plant effluent?
What is a key consideration for natural evaporation of treatment plant effluent?
Which crops are typically irrigated with wastewater effluent according to the text?
Which crops are typically irrigated with wastewater effluent according to the text?
What potential issue is associated with groundwater recharge methods for treatment plant effluent?
What potential issue is associated with groundwater recharge methods for treatment plant effluent?
In which scenario is natural evaporation of secondary effluents particularly beneficial?
In which scenario is natural evaporation of secondary effluents particularly beneficial?
Which method of secondary effluent disposal implies a risk of groundwater pollution?
Which method of secondary effluent disposal implies a risk of groundwater pollution?
What is a primary reason cited in the text for not irrigating food chain crops with effluent?
What is a primary reason cited in the text for not irrigating food chain crops with effluent?
What factor affects the depth of the aerobic layer in a facultative pond?
What factor affects the depth of the aerobic layer in a facultative pond?
What is one of the possible reasons for an imbalance between activities of methane bacteria in a pond?
What is one of the possible reasons for an imbalance between activities of methane bacteria in a pond?
What is the function of acid forming bacteria in the gasification of organic matter to methane?
What is the function of acid forming bacteria in the gasification of organic matter to methane?
In facultative ponds, what is the average chemical energy contained in an algal cell per gram of algae?
In facultative ponds, what is the average chemical energy contained in an algal cell per gram of algae?
What is the purpose of storing effluent from the secondary treatment facility in a lagoon for approximately 30 days?
What is the purpose of storing effluent from the secondary treatment facility in a lagoon for approximately 30 days?
How does the efficiency of treatment vary for different flow patterns in sewage treatment ponds?
How does the efficiency of treatment vary for different flow patterns in sewage treatment ponds?
How is effluent treated before being discharged into lakes used for recreational activities?
How is effluent treated before being discharged into lakes used for recreational activities?
What is the key concern associated with the uncontrolled spread of water hyacinths in water bodies?
What is the key concern associated with the uncontrolled spread of water hyacinths in water bodies?
What does the Bureau of Indian Standards relate the permissible areal organic loading to for odour-free pond operation?
What does the Bureau of Indian Standards relate the permissible areal organic loading to for odour-free pond operation?
What does the equation involving $106C02 + 16NO3 + HPO4 + 122H2O + 18H+$ represent in pond reactions?
What does the equation involving $106C02 + 16NO3 + HPO4 + 122H2O + 18H+$ represent in pond reactions?
Under what circumstances is direct reuse of treated wastewater considered practicable?
Under what circumstances is direct reuse of treated wastewater considered practicable?
What is the primary role of methane bacteria in facultative ponds?
What is the primary role of methane bacteria in facultative ponds?
Which cooling system can effluent be successfully used in industrial applications?
Which cooling system can effluent be successfully used in industrial applications?
How is oxygen production related to algal production in ponds?
How is oxygen production related to algal production in ponds?
What determines whether effluent is considered for reuse by industries?
What determines whether effluent is considered for reuse by industries?
What is the primary difference between aerobic and anaerobic stabilization ponds?
What is the primary difference between aerobic and anaerobic stabilization ponds?
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