臭氧-活性炭工艺中溴酸盐的生成及控制研究进展

Review on formation and controlling measures of bromate during ozone-activated carbon process

阐述了O3氧化原水过程中BrO3^-的形成机理、影响因素及活性炭对Br3^O-的吸附机理、影响因素和进一步控制BrO3^-生成量的措施。影响BrO3^-形成的因素主要有pH值、温度、O3投加方式、Br-浓度、有机物浓度等。影响活性炭对BrO3^-吸附的因素主要有表面生物膜及氧化物、Br-及其他阴离子竞争、活性炭本身的性质、有机物等。以及介绍了进一步抑制BrO3^-生成的方法。

Bromate formation mechanism,influence factor during the process of ozone disinfection,adsorption mechanism of activated carbon,influence factor and the strategy to further BrO3^- control were described.The main factors affecting the formation of bromate include pH,temperature,ozone dosing methods,the initial bromide concentration,organic concentration.The main factors affecting activated carbon adsorbed bromate include biofilm and oxide,bromine and other anions,the quality of activated carbon,organics.The further strategies were carried out to decrease bromate formation.