The growth of algae is useful in:
ASedimentation tank
BSlow-sand filter
COxidation pond
DSludge digestion tank
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Related Questions:
Which of these provide the working space for maintenance and inspection of sewer?
The equipment used for removing paper and rags from sewers is called
Removal of oil and grease from sewage is known as:
The solid or semi-solid waste from a house waste of food, peelings of vegetable, fruits etc is:
The sewer appurtenance constructed to provide a connection between the high level branch sewer to law level main sewer