An action will release discharge from a factory at a flow rate of 5 m³/s containing chemical A at aconcentration of 100 mol/L to a proportionally sized lake of volume 10' m³. This lake is also fedby a pollution-free stream at a flow rate of 50 m³/s. Water leaves the lake by a stream ofunknown flow rate and concentration. The chemical decays by the reaction: A → B (k= 0.25 d1).Assume the pollutant can be modeled as OD and steady.Draw a picture showing the source, receptor, CV boundaries, CS surfaces and xyz origin.b. Determine the flow rate of water leaving the lake in the stream.Determine the concentration of chemical A leaving the lake in the stream.d. Sketch the concentration profiles of chemical A, assuming that the overall dimensions of thelake are length X, width 2Y and depth Z, showing continuity between the profiles:- CA (t) at the xyz location where chemical A leaves the lake in the stream- CA(X) at y=0, z=0, and t=0- CA (y) at x=X, z=0, and t=0- CA (z) at x=X, y=0 and t=0Explain why this problem is reasonably OD and steady.а.С.е.

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Answered: a pollution-free stream at a flow rate…

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a pollution-free stream at a flow rate known flow rate and concentration. Tl sume the nollutant can he modeled as

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Question

An action will release discharge from a factory at a flow rate of 5 m³/s containing chemical A at a
concentration of 100 mol/L to a proportionally sized lake of volume 10' m³. This lake is also fed
by a pollution-free stream at a flow rate of 50 m³/s. Water leaves the lake by a stream of
unknown flow rate and concentration. The chemical decays by the reaction: A → B (k= 0.25 d1).
Assume the pollutant can be modeled as OD and steady.
Draw a picture showing the source, receptor, CV boundaries, CS surfaces and xyz origin.
b. Determine the flow rate of water leaving the lake in the stream.
Determine the concentration of chemical A leaving the lake in the stream.
d. Sketch the concentration profiles of chemical A, assuming that the overall dimensions of the
lake are length X, width 2Y and depth Z, showing continuity between the profiles:
- CA (t) at the xyz location where chemical A leaves the lake in the stream
- CA(X) at y=0, z=0, and t=0
- CA (y) at x=X, z=0, and t=0
- CA (z) at x=X, y=0 and t=0
Explain why this problem is reasonably OD and steady.
а.
С.
е.

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