(Answered) Powdered activated carbon is often added at water treatment

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Powdered activated carbon is often added at water treatment plants to control concentrations of geosmin, which is a natural organic chemical that can cause undesirable taste or odor. geosmin absorbs to activated carbon following a Freundlich isotherm with parameters of Kf=1.25 (ug/g)(L/ug)^.9 and n=.9. What activated carbon dose is required to lower the geosmin concentration from 2ug/L to below the taste and odor threshold of .1 ug/L? Give your answer in g/L.

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