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The function of sedimentation tank in sewage treatment is to

This question belongs to General Knowledge Chemistry
Chemistry
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The function of sedimentation tank in sewage treatment is to:

Answer & Solution
Correct Answer: Option D
A sedimentation tank allows suspended particles to settle out of water or wastewater as it flows slowly through the tank, thereby providing some degree of purification. A layer of accumulated solids, called sludge, forms at the bottom of the tank and is periodically removed.
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