臭氧投加方式对溴酸盐生成量的影响

Influence of Ozone Dosing Method on Bromate Production

为研究饮用水臭氧氧化过程中臭氧投加方式对溴酸盐生成量的影响,采用水库水添加溴离子的配水进行烧杯试验,比较瞬时单点投加、多点投加和连续投加臭氧时的溴酸盐生成量。结果表明:在臭氧投加量相同和接触时间一致的条件下,采用连续投加或多点投加时生成的溴酸盐量大大低于瞬时单点投加时生成的溴酸盐量。最后探讨了相关的机理,提出了溴酸盐的控制对策。

In order to study the influence of ozone dosing methods, e.g. single point instant dosing, multi-point dosing, and continuous dosing, on bromate production during drinking water treatment by ozonation, laboratory experiments were carried out with the bromide added reservoir water. The result shows that under the condition of the same ozone dosage and contact time, use of continuous dosing or multi-point dosing method dramatically decreases the bromate production as compared to the use of single point instant dosing method. Finally, the associated mechanism was discussed and the measures for control of bromate production were also proposed.