Namrata posted an Question
November 28, 2019 • 13:50 pm 15 points
  • CSIR NET
  • Earth Sciences

1. An aquifer with a total volume of 100000 metre3 has of porosity of 10% and specific retention of 5% the aquifer gets replenshed to its maximum capacity every

1. An aquifer with a total volume of 100000 metre3 has of porosity of 10% and specific retention of 5% the aquifer gets replenshed to its maximum capacity everyday. what would be the maximum pumping rate at which water can be withdrawn for a period of five hours from the aquifer to maintain its specific yield capacity?

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  • Namrata

    question 91

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    Dear Student,

    The solution is as follows-

    Total Volume = 106 m2
    Porosity = 10% = ({10 over 100}) = 0.1
    Specific retention = 5% = ({5 over 100}) = 0.05%
                P = S.Y + S.R
                0.1 = S.Y + 0.05
                0.1 - 0.05 = S.Y.
                0.05 = S.Y.
        Pumping rate = ({1000000m^{6} over 5hr}) x S.Y.
                = ({1000000m^{6} over 5hr})( imes{0.05 over 100})
                = 10,000 m3/hr.

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