Phenolic water generated in coke ovens & by-product plant attached to an integra

Question

Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by

Options:

A . Chlorination

B . Treating in biological oxygen pond

C . Chemical coagulation

D . None of these

Answer: Option B

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