In view of the problems of poor biodegradability and difficult degradation, low utilization rate and poor oxidation effect of conventional ozone, the experiment of microbubble strengthening ozone oxidation was carried out and compared with conventional aeration disk ozone oxidation (conventional ozone oxidation). The results of cold mode experiment show that the microbubble enhanced ozone oxidation reaction system has smaller particle size and higher ozone mass transfer rate and redox potential. Under the same conditions, the contribution rate of ·OH (hydroxyl radical) in the microbubble enhanced ozone oxidation reaction system is greater than that in conventional ozone oxidation. Under optimal reaction conditions, both microbubble enhanced ozone oxidation and conventional ozone oxidation can achieve COD (chemical oxygen demand) removal rates of around 76%. When removing the same amount of COD, the ozone dosage for microbubble enhanced ozone oxidation is only half of that for conventional ozone oxidation, and the biodegradability of the effluent is greatly improved. The ozone oxidation of microbubbles has more advantages in the deep treatment of phenol-containing wastewater.

border:0px, font-size:14px, font-family:-apple-system, BlinkMacSystemFont, ", vertical-align:baseline, margin:0.859em 0px, color:#060607, background-color:#FFFFFF, "> microbubble, ozone oxidation, phenol-containing wastewater, mass transfer rate, redox potential, ozone concentration, ozone flow, COD removal rate

由于含酚废水可生化性差、难降解，采用常规臭氧处理法的臭氧利用率低、氧化效果差，因此开展了微气泡强化臭氧氧化小试研究，并与常规曝气盘式臭氧氧化（常规臭氧氧化）进行了对比。冷模实验结果表明：微气泡强化臭氧氧化反应体系的气泡粒径小，臭氧传质速率和氧化还原电位高。在相同条件下，微气泡强化臭氧氧化反应体系中的·OH（羟基自由基）贡献率比常规臭氧氧化大。在最佳反应条件下：微气泡强化臭氧氧化和常规臭氧氧化的COD（化学需氧量）去除率均可达到76%左右；去除相同量的COD时，微气泡强化臭氧氧化的臭氧投加量仅为常规臭氧氧化的1/2，出水可生化性大幅度提高。说明微气泡强化臭氧氧化在含酚废水深度处理方面更具优势。

border:0px, font-size:14px, font-family:-apple-system, BlinkMacSystemFont, ", vertical-align:baseline, margin:0.859em 0px, color:#060607, background-color:#FFFFFF, "> 微气泡, 臭氧氧化, 含酚废水, 传质速率, 氧化还原电位, 臭氧浓度, 臭氧流量, COD去除率