# Disc_6 - the point in which the river meets the lake Assume...

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CEE 320 Discussion 6 March 3, 2010 Example 1: Badguys Co. is a company that produces a wastewater supply that is dumped into a river that leads to a nearby lake. The Department of Natural Resources has determined that the wastewater is okay to be dumped as long as compound Fishkill is not present. Unfortuantely, Badguys Co. hired a new employee that was lazy and didn’t want to properly dispose of compound Fishkill. One evening, he dumped Fishkill into the waste stream, resulting in an influx to the river at concentrations C1 (released between 60<t<70) and C2 (released between 20<t<40) according to the following graph. a. If the river receiving the waste stream acts as a PFR, draw a graph of the concentration at

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Unformatted text preview: the point in which the river meets the lake. Assume that θ PFR = 10 and the velocity and flowrate of the river are constant and there is no decay of Fishkill. Label all important values, including concentrations. b. The river flows into a lake with θ CMFR = 500. The lake has one inflow and one outflow with equal flowrates ( Δ V lake = 0). Using your graph from part a as the influent to the lake, draw a graph of the effluent concentrations of compound Fishkill from the lake. CEE 320 Discussion 6 March 3, 2010 c. Now assume that compound Fishkill is degraded over time according to a first order reaction with constant, k. Redraw the effluent graph, labeling the concentrations with the appropriate values....
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Disc_6 - the point in which the river meets the lake Assume...

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