Civil Engineering - Waste Water Engineering
Exercise : Waste Water Engineering - Section 2
1.
The most dangerous pollutant in vehicular emissions is
2.
If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is
3.
The clarigesters are
4.
Rate of flow of sewage is generally assumed
5.
Maximum permissible velocity 1.5 m/sec, is adopted in drains
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