【摘要】 为探究影响臭氧氧化工艺运行效果的因素并优化其运行参数,介绍了臭氧氧化工艺的处理机制,基于文献分析了环境条件、臭氧投加量、臭氧接触时间对臭氧氧化效果的影响,明确了最佳臭氧投加量与最佳接触时间。分析表明:温度的上升能够提高臭氧消耗率和反应速率,但对有机物去除效果的影响较小;最理想的反应pH为7;臭氧最佳投加量的范围约为O3/COD=0.13～0.25或O3/TOC=0.5～1.2;当二级出水TOC>12 mg/L时,最佳臭氧接触时间为4～5 min;当二级出水TOC<12 mg/L时,最佳臭氧接触时间为10～15 min。更多还原

【Abstract】 In order to explore the factors affecting the operation effect of ozone oxidation process and optimize the operation parameters,the treatment mechanism of ozone oxidation process was introduced.The effects of environmental conditions,ozone dosage and ozone contact time on the ozone oxidation efficiency were analyzed,and the optimal ozone dosage and contact time were defined based on literature.The analysis shows that the rise of temperature can increase the ozone consumption rate and reaction rate. However,it has little effect on the removal of organic matter. The optimum pH is 7. The range of optimum ozone dosage is about O₃/COD = 0.13 ～ 0.25 or O₃/TOC = 0.5 ～ 1.2. When the TOC concentration of secondary effluent is higher than 12 mg/L,the optimal ozone contact time is 4 ～ 5 min. When the TOC concentration of secondary effluent is lower than 12 mg/L,the optimal ozone contact time is 10 ～15 min.更多还原