PLEASE ANSWER QUESTION D   You have been contracted to determine the characteristics of raw water at 20°C. You complete a chlorine dosing experiment to aid in designing your chlorination process (Figure Below). a. What is the breakpoint chlorine dosage? b. What is the chlorine demand at a chlorine dosage of 1.2 mg/L? c. For a plant that processes 10 m3/hr, how much chlorine should I add per day to reach a constant residual chlorine concentration of 0.7 mg/l d. Design a chlorine contact tank that would achieve the required Ct value for a 3 log deactivation of Girardia (Ct = 54 mg/l min).

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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PLEASE ANSWER QUESTION D

 

You have been contracted to determine the characteristics of raw water at 20°C. You complete a chlorine dosing experiment to aid in designing your chlorination process (Figure Below).
a. What is the breakpoint chlorine dosage?
b. What is the chlorine demand at a chlorine dosage of 1.2 mg/L?
c. For a plant that processes 10 m3/hr, how much chlorine should I add per day to reach a constant residual chlorine concentration of 0.7 mg/l
d. Design a chlorine contact tank that would achieve the required Ct value for a 3 log deactivation of Girardia (Ct = 54 mg/l min).

Residual chlorine after 10 minutes of
contact (mg/L)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
Residual chlorine after
0.2
10 minutes of contact
(mg/L)
0.1
0.5
1.5
Chlorine Added (mg/L)
Residual Chloine (mg/L)
Transcribed Image Text:Residual chlorine after 10 minutes of contact (mg/L) 0.9 0.8 0.7 0.6 0.5 0.4 0.3 Residual chlorine after 0.2 10 minutes of contact (mg/L) 0.1 0.5 1.5 Chlorine Added (mg/L) Residual Chloine (mg/L)
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