Treatment technology for waste water of disperse red 60 production

The invention discloses a treatment technology for waste water of disperse red 60 production. The treatment technology comprises steps as follows: (1), precipitation: pH of waste water of the disperse red 60 production is regulated to 2-5, nitrite is added to initiate organic matter in the waste water to be subjected to a precipitation reaction, the waste water is filtered after the precipitation reaction, and a filtrate is obtained; (2), oxidization: the filtrate and an aqueous chlorine dioxide solution are mixed, a mixed solution is regulated to be neutral and subjected to an oxidation reaction, and treated effluent is obtained. According to the treatment technology, the precipitation reaction is introduced into the waste water treatment, all that is required is to add a small amount of nitrite as an initiator during precipitation, the organic matter can be initiated to be precipitated, insoluble macromolecular precipitates are produced, the reaction conditions are milder, the cost is lower, and the treatme