Civil Engineering - Waste Water Engineering - Discussion

Discussion Forum : Waste Water Engineering - Section 6 (Q.No. 25)

Waste Water Engineering

25.

Pick up the correct statement from the following :

Hydrogen sulphide gas in excess, may cause corrosion of concrete sewers

4 ppm of Dissolved Oxygen (D.O.) is ensured before discharging the treated sewage in river

Solubility of oxygen in sewage is 95% of that of distilled water

Dissolved oxygen content of sewage, may be determined by Winkler's method

All the above.

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