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  1. The function of sedimentation tank in sewage treatment is to:

  2. A.

     Disinfect the sewage

    B.

     Remove water content

    C.

     Aerate the sewage

    D.

     Remove suspended solids

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    Answer : Option D

    Explanation :

    A sedimentation tank allows suspended particles to settle out of water or wastewater as it flows slowly through the tank, thereby providing some degree of purification. A layer of accumulated solids, called sludge, forms at the bottom of the tank and is periodically removed.


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