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Discussion :: Waste Water Engineering

  1. If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is

    2. A.

     200 ppm
    B.

     225 ppm
    C.

     250 ppm
    D.

     None of these

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    Answer : Option C

    Explanation :

    Explanation Not Provided

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