Chemical Oxidation

Air, chlorine, ozone, and other chemical oxidizing agents are used to destroy phenol, which is first converted to hy-droquinone and then to quinone. Additional oxidation destroys the aromatic ring, forming organic acids and eventually carbon dioxide and water (Eisenhauer 1968).

Air is an inexpensive oxidizing agent but reactions are slow. Phenol can be completely decomposed by chlorina-

FIG. 8.2.13 Granular carbon systems for phenol removal

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