Ozone is sometimes used as a disinfectant for drinking water. Ozone will react with many benign species in the water as well as the pathogens it is intended to kill. It is found that ozone reaction in water nearly follows first- order kinetics in ozone concentration, such that its concentration decreases by 50% in 18 minutes. A water supplier wants to inject ozone into a pipe bringing water to the water treatment plant to pre-disinfect the influent. The 2.0 ft diameter pipe is 3,000 feet long with a steady flow rate of 12,000 gal/min. What concentration of ozone should be injected at the head of the pipe so that there will be an ozone concentration of 1.2 mg/L at the pipe's exit into the plant.

Ozone is sometimes used as a disinfectant for drinking water. Ozone will react with many benign species in the water as well as the pathogens it is intended to kill. It is found that ozone reaction in water nearly follows first- order kinetics in ozone concentration, such that its concentration decreases by 50% in 18 minutes. A water supplier wants to inject ozone into a pipe bringing water to the water treatment plant to pre-disinfect the influent. The 2.0 ft diameter pipe is 3,000 feet long with a steady flow rate of 12,000 gal/min. What concentration of ozone should be injected at the head of the pipe so that there will be an ozone concentration of 1.2 mg/L at the pipe's exit into the plant.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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