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Waste Water Engineering

Waste Water Engineering
The water carried sewerage system removes

All listed here
Industrial sewage
Storm sewage
Domestic sewage

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Waste Water Engineering
hydraulically equivalent, the relationship which holds good, is

D2/3 = 4 b2/3
D3/8 = 4 b3/8
D3/2 = 4 b3/2
D8/3 = 4 b8/3

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Waste Water Engineering
The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by

Bazin
William-Hazen
Crimp and Bruges
Kutter

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Waste Water Engineering
Maximum permissible velocity 1.5 m/sec, is adopted in drains

Both A. and B.
With beds of rocks and gravels
Neither A. nor B.
Lined with stones

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Waste Water Engineering
The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope

1 in 5
1 in 15
1 in 10
1 in 20

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Waste Water Engineering
Hume steel pipes are

Steel pipes
Steel shell coated from outside with cement mortar
Steel shell coated from inside with cement mortar
Both B and C

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