Abstract: Pesticide production wastewater has the characteristics of complex water quality, many kinds of pollutants, and large biotoxicity of wastewater, which, if not treated effectively, will have a serious impact on the ecological environment. Therefore, we use catalytic ozone oxidation technology to treat the actual production of wastewater by a pesticide enterprise, and introduce the concept of ammonia nitrogen conversion rate, this paper studies the actual treatment effect of catalytic ozone oxidation technology on wastewater. This paper analyzes the effects of ozone injection, hydrogen peroxide, catalyst, reaction time and reaction pH on COD removal rate and ammonia-nitrogen conversion rate in wastewater. The results showed that the catalytic ozone oxidation reaction could significantly reduce the color of wastewater, and in the reaction pH is 8, ozone injection amount 3000mg/L, hydrogen peroxide injection amount 3 mg/L, homemade catalyst 50g/L, reaction time of 120min, wastewater COD removal rate and ammonia nitrogen conversion rate of the best, 38.4% and 47.1%, respectively.
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