The analysis of a water is as follows:(a) Draw milliequivalents-per-liter bar graph, list...

The analysis of a water is as follows:

(a) Draw milliequivalents-per-liter bar graph, list the hypothetical combinations of chemical compounds, and calculate the total hardness.

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(b) Calculate the chemical dose needed for excess lime softening.

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(c) Draw a bar graph for the finished water after two step precipitation softening by excess lime treatment with intermediate and final recarbonation, assuming 60 percent of the alkalinity is bicarbonate. Assume the practical limits of hardness removal for calcium to be 30 mg/I and magnesium to be 10 mg/l.

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(d) Calculate the chemical dose required for selective calcium carbonate removal to produce a finished water with a hardness of 120 mg/l.