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Discussion :: Waste Water Engineering

  1. Pick up the correct statement from the following:

    2. A.

     In treated sewage, 4 ppm of D.O. is essential
    B.

     Only very fresh sewage contains some dissolved oxygen
    C.

     The solubility of oxygen in sewage is 95% that is in distilled water
    D.

     All the above

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    Answer : Option D

    Explanation :

    Explanation Not Provided

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