HW2 2009 - CEE 4310 WATER QUALITY ENGINEERING SPRING 2009...

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CEE 4310 WATER QUALITY ENGINEERING SPRING 2009 HOMEWORK #2 (DUE FEB 10) 1 . (15 pts). What is the relative volume required for a CM reactor compared to a PF reactor if the following first-order kinetics applies for a contaminant of interest and treatment efficiencies ( i . e ., removal %) of 50, 75, 90, 95, and 99% are required? First, develop an equation to describe this ratio (show all the derivations to receive full-credits). Then fill out the following table. r = – k 1 × C where r = rate of reaction (ML -3 T -1 ); k 1 = first-order rate constant (T -1 ); C = concentration (ML -3 ) Removal % 50 75 90 95 99 V CM ÷ V PF where V CM = Volume of CM reactor and V PF = Volume of PF reactor 2 . (15 pts). Perform the same exercise if the following second-order kinetics applies for another contaminant. First develop an equation to describe this ratio (show all the derivations to receive full-credits) and then fill out the following table. r = – k
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HW2 2009 - CEE 4310 WATER QUALITY ENGINEERING SPRING 2009...

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