Question

Primary treatment of waste water include​

Answer 1

Answer:

Primary treatment removes material that will either float or readily settle out by gravity. It includes the physical processes of screening, comminution, grit removal, and sedimentation.

Explanation:

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Answer 2

Answer:

Primary treatment removes material that will either float or readily settle out by gravity. It includes the physical processes of screening, comminution, grit removal, and sedimentation.

correct answer!!