An engineering team has been asked to evaluate the disinfection efficiency of a 5 LUV reactor for the inactivation of Adenovirus. With the flow rate of 42 L/min and influent adenovirus concentration of 210 Pfu/ml, the surviving concentration of Adenovirus in the effluent of the reactor was obtained as 610 Pfu/ml. Considering the UV dose- response curve of Adenovirus (figure below): A. Calculate the UV dose provided by this reactor for this flowrate. B. Calculate the number of reactors needed to provide a 4 log reduction of the Adenovirus. C. Would you put these reactors in parallel or in series? Why? Adenovirus Dose Response Curve 4.5 Log Inactivation 3 2.5 2 1 0.5 0 20 20 40 40 60 80 100 120 140 160 180 200 UV dose (mJ/cm)