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    Residence Time of Water

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    A stable and highly soluble pollutant is dumped into a lake at the rate
    of 0.19 tonnes per day. The lake volume is 2E7 m3 and
    the average water flow-through rate is 8E4 m3 per day. Ignore evaporation
    from the lake surface and assume the pollutant is uniformly mixed in the lake.
    What eventual steady-state concentration will the pollutant reach (in ppm)?

    Hint: Calculate residence time of water in lake. Multiply by pollutant input rate.

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    https://brainmass.com/physics/classical-mechanics/residence-time-water-217519

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    A stable and highly soluble pollutant is dumped into a lake at the rate of 0.19 tonnes per day. The lake volume is 2E7 m3 and the average water flow-through rate is 8E4 m3 per day. Ignore evaporation from the lake surface and assume the pollutant is uniformly mixed in the lake.

    What eventual steady-state ...

    Solution Summary

    The solution contains the determination of residence time of water in lake and eventual steady-state concentration of the pollutant.

    $2.19