摘要
本文以天然山泉水为研究对象,研究分析了水源预处理、活性炭过滤对Br-的去除效果,分析比较了臭氧塔鼓泡式混合的布气盘孔径对臭氧混合效果以及BrO3-生成量的影响,研究了臭氧投加量对BrO3-生成量的影响,以及桶装水灌装后BrO3-含量的变化。结果发现水源预处理和活性炭过滤对Br-有良好去除效果,可以有效控制BrO3-的生成来源;小孔径布气盘比大孔径布气盘具有更好的混合效果并能有效降低BrO3-生成量;BrO3-的生成量随臭氧浓度的增加而升高,臭氧在低浓度范围内增加时,溴酸盐缓慢增加,当臭氧浓度在0.4~0.6 mg/L范围内增加时,溴酸盐生成量明显增加;桶装水在灌装后2-4h内,溴酸盐会有一定程度的增加,在12 h后由于臭氧分解,溴酸盐含量不再变化。
The pre-treatment of source water,bromated-remove by activate carbon and the effects of gas distribution plate aperture of ozone bubble column on ozone mixing and output of BrO3-were investigated.The effect of ozone dosage on the formation of BrO3-and the changes of BrO3-content in bottled water were also studied.Results showed that the pretreatment of water source and activate carbon filtration can effectively remove the content of Br-in bottled nature spring and control the formation of BrO3-.The gas distribution plant with small aperture showed better mixing effect than that with large aperture,which could effectively decrease the output of BrO3-.The content of BrO3-increased slowly with the increase of ozone concentration（0-0.4 mg/L）.Within the range of 0.4-0.6 mg/L,increase of ozone concentration significantly enhanced the generation of BrO3-.The content of BrO3-might increase in 2-4 h after filling.After 12h,no changes in the content of BrO3-was found in the bolted nature spring.
出处
《现代食品科技》
EI
CAS
2011年第8期952-955,共4页
Modern Food Science and Technology
