2018Civil EngineeringMedium
Pick up the correct statement from the following?
AAll the above
BSolubility of oxygen in sewage is 95% of that of distilled water
C4 ppm of Dissolved Oxygen (D.O.) is ensured before discharging the treated sewage in river
DHydrogen sulphide gas in excess, may cause corrosion of concrete sewers
Correct answer
A. All the above
Explanation
The correct answer is All the above.