Estimate the reduction in bacteria during the passage of wastewater that initially contains 106 organisms per milliliter through three stabilization ponds that are arranged in series. The volumes of the three ponds are 10,000; 20,000; and 6,000 m3, respectively. The flowrate is 1000 m3/d. Assume that steady-state conditions apply, that the ponds are completely mixed due to wind action, that first-order decay kinetics apply, and that the value of the reaction rate constant k is 1.0 d-1. What is the overall conversion for these ponds in series? Instead
Estimate the reduction in bacteria during the passage of wastewater that initially contains 106
organisms per milliliter through three stabilization ponds that are arranged in series. The volumes
of the three ponds are 10,000; 20,000; and 6,000 m3, respectively. The flowrate is 1000 m3/d.
Assume that steady-state conditions apply, that the ponds are completely mixed due to wind
action, that first-order decay kinetics apply, and that the value of the reaction rate constant k is
1.0 d-1. What is the overall conversion for these ponds in series? Instead of having three separate
ponds in series what would the conversion be for one equivalent pond of the same total volume?
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