Continuously Stirred Tank Reactors (CSTR) and Plug Flow Reactors (PFR) are widely used for different water treatment processes. Assuming both the CSTR and PFR are operating under the same conditions and are at steady state, with influent pollutant concentration of 40mg COD per litre, water volume of 100 litre and flow rate of 5 litre per second Determine the pollutant concentrations in the effluents of CSTR and PFR, respectively, in steady state. Assuming both CSTR and PFR has a zero order reaction with decay rate of 0.1mg per litre per second