enviromental

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Completely mixed flow ractor CSTR and plug flow reactor (PFR) may have
significantly different efficiencies depending on the reaction order. This problem
asks you to compare the relative reactor sizes required to ensure 99.0 % removal of
wastewatwer pathogens. Wastewater from a city, which flows at a constant rate of
106 L/d, must be treated for coliform removal before it can be discharged to surface
waters. The initial coliform concentration is 250 mg/L and the rate constant for
coliform decay is given as k=2day(mg/L)1-i where i = reaction order

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