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Jar tests were performd on untreated groundwater. An optimum dose of 10 mg/L of alum was determined. If 70*105 gallon/day of raw water are

to be treated, determine the amount of alum required (Kg/yr). 1 gallon=3.786 Liters.

500 323 Kg alum/ Yr

1000 900 Kg alum//Yr

970000 Kg alum/Yr

862300 kg alum/Yr

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