农村供水臭氧消毒副产物溴酸盐生成的初步研究

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臭氧消毒近年来为各地农村供水工程所广泛采用,但其带来的副产物溴酸盐超标问题却没有引起足够的重视。对北京若干区县的实际水样进行臭氧投加试验,考察了副产物溴酸盐的生成情况,探讨了臭氧消毒的适用性。结果表明:北京地区地下水采用臭氧消毒时溴酸盐超标的风险较高,建议在选择臭氧消毒前首先对原水进行臭氧投加试验,并考察生成溴酸盐的浓度水平;臭氧投加方式对于溴酸盐生成量的影响较大。 In recent years, ozone disinfection has been widely used in rural water supply projects all over the country. However, the problem of exceeding the standard of by-product bromate caused by ozone has not been given enough attention. The actual water samples from several districts and counties in Beijing were tested for ozone injection. The formation of by-product bromate was investigated, and the applicability of ozone disinfection was discussed. The results showed that there was a high risk of groundwater exceeding the standard when using bromate in Beijing. It is suggested that ozone should be added into the raw water before ozone disinfection and the concentration of bromate should be investigated. The effect of acid formation is greater.
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