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Waste Water Engineering

Waste Water Engineering
Bottom openings 15 cm × 15 cm in the standing baffle wall are provided

50 cm c/c
22.5 cm c/c
30 cm c/c
15 cm c/c

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Waste Water Engineering
The presence of free ammonia in sewage, is detected by

Phenol-di-sulphuric acid
Adding potassium permanganate
Boiling
Adding sulphuric acid

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Waste Water Engineering
During purification process of sewage the gas given off, is

All listed here
Ammonia
Carbon dioxide
Hydrogen

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Waste Water Engineering
Aerobic activity is maximum

In sewer treatment plants
At sewer pipes
In freshly produced sewage
None of these

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Waste Water Engineering
The sewerage system consists of

Branch sewer
House sewer
Lateral sewer
All of these

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Waste Water Engineering
The sewer which resists sulphide corrosion, is

Brick sewer
Lead sewer
R.C. sewer
Cast iron sewer

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