Waste Water Engineering
The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in

Kutter’s formula
Chezy’s formula
Bazin’s formula
Manning’s formula

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Waste Water Engineering
Nitrogen cycle of sewage, is

Liberation of nitrogen-liberation of ammonia-formation of nitrites- formation of nitrates
Liberation of nitrogen-formation of nitrates-formation of nitrites-liberation of ammonia
Liberation of ammonia-formation of nitrites-formation of nitrates-liberation of nitrogen
Formation of nitrates-formation of nitrites-liberation of nitrates-liberation of nitrates

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