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What is Chemical Oxygen Demand (COD) ?...

What is Chemical Oxygen Demand (COD) ?

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What is Bio Chemical Oxygen Demand (BOD).?

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Knowledge Check

  • Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

    A
    Petroleum industry
    B
    Sugar Industry
    C
    Domestic sewage
    D
    Dairy industry
  • In which one of the following the BOD (Bio-chemical Oxygen Demand) of sewage (S), distillery effluent (DE), paper mill effluent (PE) and sugar mill effluent (SE) have been arranged in ascending order ?

    A
    `SElt PEltSltDE`
    B
    `PE lt Slt SE lt DE`
    C
    `S lt DE lt PE lt SE`
    D
    `SE lt S lt PE lt DE`
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