Waste Water Engineering
The sewer pipes

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

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Waste Water Engineering
Skimming tanks are

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

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