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11.61 A 4.0% sodium fluoride solution is applied to increase the fluoride concentration from 0.4 to 1.0 mg/l in a municipal water supply. (a) What is the application rate of NaF solution in gal/mil gal? (b) How many pounds of commercial-grade sodium fluoride are needed per million gallons?

11.61 A 4.0% sodium fluoride solution is applied to increase the fluoride concentration from 0.4 to 1.0 mg/l in a municipal water supply. (a) What is the application rate of NaF solution in gal/mil gal? (b) How many pounds of commercial-grade sodium fluoride are needed per million gallons?

Solid Waste Engineering
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter2: Municipal Solid Waste Characteristics And Quantities
Section: Chapter Questions
Problem 2.6P
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Question
**Problem 11.61** A 4.0% sodium fluoride solution is applied to increase the fluoride concentration from 0.4 to 1.0 mg/l in a municipal water supply. (a) What is the application rate of NaF solution in gal/mil gal? (b) How many pounds of commercial-grade sodium fluoride are needed per million gallons?
Transcribed Image Text:**Problem 11.61** A 4.0% sodium fluoride solution is applied to increase the fluoride concentration from 0.4 to 1.0 mg/l in a municipal water supply. (a) What is the application rate of NaF solution in gal/mil gal? (b) How many pounds of commercial-grade sodium fluoride are needed per million gallons?
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