A rapidly mixed tank consists of a treatment unit used to disinfect a solution. The solution enters the 2000 m tank at a rate of 0.4 m/s. The pollutant contains 7.94 CFU per liter and has no 0 mg/l of chlorine. The treatment unit uses a stock solution containing 750 mg/L which is released a rate that will cause the chlorine concentration in the tank to be 2 mg/L. The chlorine reacts with the water in such a way that it is depleted at a rate (in mg/L-h) given by rc = (-0.45/h) Cci. When exposed to chlorine, the bacteria die off at a rate (in cells/L-s) given by: roact 0.03 S Ccl Cbact 1mg + Ca L a) Calculate the required flow rate in L/s of the stock solution when the system is operating at steady state, including a schematic of the system. b) Determine the bacterial concentration (in CFU/L) thar should be expected in the effluent from the tank