Question 9036 of 234 · California Wastewater Operator Exam
A plant feeds 12.5 percent sodium hypochlorite (about 1.04 lbs of available chlorine per gallon) to dose 4 mg/L at 1.5 MGD. How many gallons of solution are needed per day?
Exactly one answer is correct.
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Correct answer to question 9036
- D: 48.1 gal/day
Explanation
Chlorine needed = 8.34 x 1.5 x 4 = 50.0 lbs/day. Gallons = 50.0 / 1.04 lbs/gal = 48.1 gal/day. Dividing by 8.34 ignores the strength of the solution.
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