Question

Waste matter that floats on the in the first sedimentation tanks is called.​

Answer 1

Answer:

sludge: any solid, semisolid, or liquid waste that settles to the bottom of sedimentation tanks (in wastewater treatment plants or drinking water treatment plants) or septic tanks. With these terms defined, we can now talk about the first major phase of wastewater treatment, referred to as preliminary treatment.

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Answer 2

Answer:

clarified water

Explanation:

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