Removal of oil and grease from sewage is known as:
AScreening
BSkimming
CFiltration
DNone of these
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Related Questions:
The process of killing pathogenic bacteria of water borne diseases to make it safe for use in hospital is called:
Sewer pipes are made of
The lowest point of the interior of a sewer or drain at any cross section
High bacterial removal by slows and filter is accomplished by:
The gas which is mainly responsible for explosion in sewers is called :