Estimate the length of pipe, Macroeconomics

Engineers sometimes add chlorine to pipes to disinfect water. It is desired to achieve four logs of kill. This means that the effluent concentration of microorganisms is 10-4 times the influent. If the flow is 40 ft3/min, calculate the volume of the pipe required to achieve four logs of kill if the first-order rate constant for disinfection is 0.5 min-1. If the pipe is 3 feet in diameter, how long would the pipe have to be?

 

Posted Date: 3/19/2013 4:04:47 AM | Location : United States







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