Question

Which chemical is commonly used in the tertiary treatment process for phosphorus removal?

A Sodium hypochlorite Correct Answer Incorrect Answer
B Hydrogen peroxide Correct Answer Incorrect Answer
C Aluminium sulfate (Alum) Correct Answer Incorrect Answer
D Calcium carbonate Correct Answer Incorrect Answer

Solution

Aluminium sulfate (Alum) is often used in the chemical precipitation process to remove phosphorus by forming an insoluble precipitate called aluminium phosphate.

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