Abstract:In response to the problem of insufficient oxidation performance and easy scaling and blockage of aeration equipment in the treatment of mineral processing wastewater by ozone oxidation process under high pollution load conditions, the synergistic oxidation process of jet aeration coupled with ozone / hydrogen peroxide was conducted to treat mineral processing wastewater. The effects of clarification pretreatment, hydraulic retention time, ozone and hydrogen peroxide dosage on the treatment effect were investigated, and analyzed the dosage of coupling process agents and direct operating costs under different pollutant load conditions. The results showed that the performance of the synergistic oxidation process coupled jet aeration with ozone / hydrogen peroxide has a good effect on mineral processing wastewater treatment. Which has strong impact resistance, raw water needs to undergo sedimentation pretreatment before oxidation, the dosage of oxidizing agents can be flexibly adjusted according to changes in raw water quality, the process conditions for treating wastewater to a level that does not affect reuse were ozone dosage of 110~240 g/m3, hydrogen peroxide dosage of 2~4 L/m3, and hydraulic retention time of about 30 min. The treatment cost under different pollutant loading conditions is 3.0-8.8 yuan/ton of water, which is a promising research and engineering application direction for mineral processing wastewater treatment.