Water-and-waste-water Questions Set 32:
A wastewater sample contains 10-5.6 mol/L of OH- ions at 25°C. The pH of this sample is
Solution:
Which of the following water distribution systems provides 'Economy and simplicity'?
Solution:
What will be the surface area of the basin (in m2) for a flow of 2 × 106 liters per day having a surface loading rate of 10,000 liters/day/m2?
Solution:
Which instrument is used to measure the turbidity of water when the turbidity is more than 100 ppm?
Solution:
Which of the following pairs is not correctly matched?
Solution:
What is the primary cause of eutrophication in water bodies?
Solution:
Effluent from a wastewater treatment plant (flow rate = 8640 m³/day, temperature = 25°C) is discharged to a surface stream (flow rate = 1.2 m/s, temperature = 15°C). What is the temperature of the stream after mixing?
Solution:
Consider the following impurities that need to be removed in a water treatment plant:
1. CO2 and H2S
2. Finely-divided suspended matter
3. Disease-causing bacteria
4. Excess alkalinity
What is the correct sequence to remove these impurities?
Solution:
Match List-I (Name of impurity in water) with List-II (Removed by) and select the correct answer using the codes given below the lists:
List-I
A. Fluorides
B. Manganese
C. Taste and odour
List-II
1. Activated carbon
2. Activated alumina
3. Manganese zeolite
Solution:
Find the required surface area of the oxidation pond which is to be provided for sewage treatment in a village of 2000 persons contributing sewage of 80 liters per capita per day (lpcd). The 5-day biochemical oxygen demand (BOD5) of the sewage is 200 mg/L. The organic loading of the pond is taken as 150 kg/hectare/day.
Solution:
Related Question Sets:
Related Topics:
Scroll to Top
