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A contaminated soil from an industrial site is to be decontaminated in an aerated lagoon. To determine the time required to treat the contaminated soil,
A contaminated soil from an industrial site is to be decontaminated in an aerated lagoon.
To determine the time required to treat the contaminated soil, a laboratory scale completely mixed
batch reactor is used to generate the following data.
Time d Waste concentration mgL
Assuming st order kinetics for decay, estimate the decay rate constant. Given the lab technician did
not measure the waste concentration for the first days of the lab test, you must also make an
estimate of the initial concentration of the waste. The utility operating the aerated lagoon has asked
you to make estimates of the time required for and reductions in the concentration of
the waste. You must also determine whether any of these conditions are likely to meet the target of
less than ppm of contamination, upon which the treated waste may be easily disposed of
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