Question

Which one of the following is a step in wastewater treatment?

aeration
filtration
all of these

Answer 1

Explanation:

The incoming wastewater passes through screening equipment where objects such as rags, wood fragments, plastics, and grease are removed. The material removed is washed and pressed and disposed of in a landfill. The screened wastewater is then pumped to the next step: grit removal.

Answer 2

Answer:

filtration is the right answer

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