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COAGULATION – Treatment of a water supply required 60 mg/l of alum as a coagulant. The...

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Civil Engineering

COAGULATION – Treatment of a water supply required 60 mg/l ofalum as a coagulant. The natural alkalinity of the water is 20mg/l. Based on theoretical chemical reactions, what dosage of limeas CaO is required to react with the alum after the naturalalkalinity is exhausted?

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