The results of a chlorine demand test on a raw water at 20 ^o C are given in the following table

(a) Sketch the chlorine demand curve. (b) What is the breakpoint chlorine dosage? (c) What is the chlorine demand at a chlorine dosage of 1.20 mg/I.

Transcribed Image Text:

Sample Chlorine Dosage (mg/l) Residual Chlorine Aftel' 10 Min of Contact (mg/l) 2 3 5 6 7 8 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 0.19 0.37 0.51 0.50 0.20 0.40 0.60 0.80 Sample Chlorine Dosage (mg/l) Residual Chlorine Aftel' 10 Min of Contact (mg/l) 2 3 5 6 7 8 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 0.19 0.37 0.51 0.50 0.20 0.40 0.60 0.80

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a The chlorine demand curve is given below b From the cur... View the full answer