lime is added to factory waste before it is discharged into river. Just
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The factory effluents are acidic innature. If it is discharged directlyinto rivers it can lower the pH of the river and cause harm to aquatic life. Hence slaked lime is added to neutralize the acid and it won't be that much harmful to the rivers.
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2
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hey
Explanation:
because factory wastes are acidic in nature ,if a basic substance like lime is added ,,it became a neutral solution which further dont cause any harm to aqatic animals and plants
hope it will help u
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