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    During the sewage treatment process, physical removal of the large and the small particles is done during the
    Question

    During the sewage treatment process, physical removal of the large and the small particles is done during the

    A.

    Primary treatment

    B.

    Secondary treatment

    C.

    Biological treatment

    D.

    None of the above

    Correct option is A

    Primary treatment steps basically involve physical removal of particles – large and small – from the sewage through filtration and sedimentation.

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