Waste Water Engineering
In detritus tanks,

All listed here
Detention period is kept 3 to 4 minutes
Organic and inorganic materials are separated
Flow velocity is kept 0.09 m/sec

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

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