A CSTR is used to treat an industrial waste, using a process that destroys the pollutant according to first-order kinetics, with a k = 0.126/day. The reactor volume is
500 m3, the volumetric flow of the single inlet and exit is 50 m3/s, and the inlet pollutant concentration is 100 mg/L. Assuming steady-state conditions, what is the outlet
concentration after treatment? Do the mass balance.
I get a concentration of 99 mg/L, which doesn’t seem correct. I think I messed up the units, but I can’t tell where. Please show all steps.
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