Which of the following impurities are easier to remove from domestic sewage?
This question was previously asked in
Shift 12/06/2023 8:30 AM - 10:30 AM
A
Toxic metal ions
B
Dissolved salts
C
Solid impurities
D
Colloidal impurities
Correct Answer
Solid impurities
Detailed Explanation
Solids are relatively easy to remove, what is most difficult to remove are dissolved salts such as nitrates, phosphates, and other nutrients, and toxic metal ions and organic compounds.
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