Assign_2-3_alum - 3) Treatment of a water supply requires...

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EVEG 3110 Coagulation and Flocculation 1) Explain thoroughly the difference between Coagulation and Flocculation. 2) Jar tests indicate than an alum dosage of 45 mg/L will be required to treat a raw water that has an alkalinity of 75 mg/L as CaCO 3 . Calculate the rate that alkalinity must be applied (in kg/d) to treat 10 MGD of water. Will the natural alkalinity of the water be sufficient to satisfy the reaction with the alum?
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Unformatted text preview: 3) Treatment of a water supply requires 60 mg/L of ferric sulfate as a coagulant. The natural alkalinity of the water is 40 mg/L as CaCO 3 . Based on the theoretical chemical reactions, what dosage of slaked lime must be added to react with the ferric sulfate after the natural alkalinity is exhausted? (hint see page 175 of book)....
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This note was uploaded on 05/20/2010 for the course EVEG 3110 taught by Professor Malone during the Spring '10 term at LSU.

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