O3/UV过程中溴酸盐生成的研究

臭氧在处理含溴水的过程中会产生具有致癌性的溴酸盐。本文研究了O3/UV氧化法在处理含溴水的过程中溴酸盐生成量的变化规律，与单独臭氧氧化和单独紫外氧化的结果做对比分析，并应用于处理自然水体。研究结果表明：单独臭氧氧化过程中会产生一定量的溴酸盐，并随反应时间逐渐增多，低pH值有利于减少溴酸盐的生成量；在相同条件下，紫外光辐射的氧化过程中基本不产生溴酸盐，但反应速率较慢；O3/UV联用氧化法处理过程中溴酸盐的变化规律与臭氧氧化法中类似，但溴酸盐生成量减少了70%；O3/UV联用氧化法处理自然水体的效果优于单独臭氧氧化，溴酸盐生成量减少了24%。

Research on the Formation of Bromate During O3/UV Hybrid Processes

Carcinogenic bromate was produced during ozonation of bromide-containing waters.The bromate formation during O3/UV oxidation of bromide-containing waters is mainly discussed in this paper, then compared with the results of O3 and UV process, and applied to treat with natural waters. The results show that:O3 process produce a certain amount of bromate, and gradually increased with the reaction time, low pH benefits to reduce the formation of bromate;in the same conditions, almost no bromate produced during UV process, but the reaction rate was slow,the change rule of bromate formation during O3/UV oxidation was similar to O3 process,but the formation of bromate decreased by 70%, the effect of treating with natural water by O3/UV process was better than O3 process, and the formation of bromate decreased by 24%.