What is the CORRECT match between the air pollutants and treatment techniques given in the table?
| Air pollutants | Treatment techniques |
|---|---|
| P - NO2 | i - Flaring |
| Q - SO2 | ii - Cyclonic separator |
| R - CO | iii - Lime scrubbing |
| S - Particles | iv - NH3 injection |
Which one of the following products is NOT obtained in anaerobic decomposition of glucose?
A circular settling tank is to be designed for primary treatment of sewage at a flow rate of 10 million liters/day. Assume a detention period of 2.0 hours and surface loading rate of 40000 liters/m2/day. The height (in meters) of the water column in the tank is ______________ (rounded off to 2 decimal places).
An organic waste is represented as C240O200H180N5S5.
(Atomic weights: S-32, H-1, C-12, O-16, N-14).
Assume complete conversion of S to SO2 while burning.
SO2 generated (in grams) per kg of this waste is __________ (rounded off to 1 decimal place).
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