Under alkaline conditions, the cyanide in the oxidizing wastewater of NaClO can be divided into two stages. First, the cyanide is oxidized to cyanate and further oxidized to carbon dioxide, ammonia and nitrogen.

According to the nature of this segmentation reaction, in the treatment of cyanide-containing wastewater, the oxidation reaction is controlled to complete the first stage, and then CNO - hydrolyzed to C0 2 and NH 3 (referred to as incomplete oxidation); of NaClO, so CN - completely oxidized to CO 2 and N 2 (referred to as fully oxidized).

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