Pollution Control: Mastery Test
5
Select the correct answer from each drop-down menu.
How does the precipitation process work to control water pollution?
Precipitation is a useful method to remove
removed by

heavy metals
light pollutants
all metals
Pollutants that have become insolub
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Answer :

Final answer:

Precipitation in wastewater treatment selectively removes pollutants before water is released back into natural bodies of water.


Explanation:

Precipitation as a method to control water pollution works by selectively removing contaminants from wastewater before it is discharged back into natural water bodies. For instance, phosphate ions can be selectively precipitated out to prevent excessive algae growth.


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