Which of the following is not employed as an oxidation method? Options: A . &nbspOxidation ponds B . &nbspTrickling filters C . &nbspContact aerators D . &nbspAll of these

Which of the following is not employed as an oxidation method?

Question

Which of the following is not employed as an oxidation method?

Options:

A . Oxidation ponds

B . Trickling filters

C . Contact aerators

D . All of these

Answer: Option D
Answer: (d).All of these

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