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  1. Ultraviolet rays can be used in water treatment as

    2. A.

     Flocculator
    B.

     Precipitator
    C.

     Hydrolyser
    D.

     Disinfectant

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    Answer : Option D

    Explanation :

    UV radiation can be an effective viricide and bactericide. Disinfection using UV radiation is commonly used in wastewater treatment applications and is finding an increased usage in drinking water treatment.

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