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The dissolved oxygen in effluent from an oxidation pond must be increased from 1.0 mg/l to 4.0 mg/l. before discharge. The average summer water temperature
The dissolved oxygen in effluent from an oxidation pond must be increased from 1.0 mg/l to 4.0 mg/l. before discharge. The average summer water temperature in the oxidation pond is 25 deg C.
Estimate the height of a step cascade to achieve the desired DO concentration.
[The DO saturation concentration at 25 deg C is 8.38 mg/l.]
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