When alum is added as a coagulant in water treatment, it:

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Computer · Water Supply Engineering

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Decreases the pH value of water

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Answer 1

Does not affect the pH value of water

Answer 2

Increases the pH value of water

Answer 3

Decreases the pH value of water

Answer 4

Does not require alkalinity in water for flocculation

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