Waste Water Engineering
The sewer pipes

Should resist the wear and tear caused due to abrasion
All listed here
Carry sewage as gravity conduits
Are designed for generating self-cleansing velocities at different discharge

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Waste Water Engineering
Skimming tanks are

Tanks provided with self- cleansing screens
Used to remove the grease and oil
Those from which sludge is skimmed out
Improved version of grit chambers

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