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Modeling Wastewater Treatment

The equations used in this program are very relevant for the prediction of effluent concentrations in water or wastewater treatment plants. Generally, an engineer knows what the influent concentration of a certain contaminant is, the influent flow rate, what the effluent concentration must be (as required by law), and can estimate what the removal/degradation rate of the compound should be. Then the engineer can predict the necessary detention time and thus the reactor volume.

Consider our equation:

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In this expression, note that as we said above, everything but V is known, so the engineer can solve to determine how large the reactor volume should be.

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John Hoggard <hoggard@math.vt.edu>
Last modified: Tue Aug 12 23:56:49 EDT 1997