臭氧/紫外线去除水中亚硝基吡咯烷的研究  

Study on the removal of nitrosopyrrolidine by ozone/ultraviolet rays

作　　者：丁春生[1] 高梦颖 姜明 雷佳 DING Chun-sheng;GAO Meng-ying;JIANG Ming;LEI Jia(School of Civil Engineering,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江工业大学土木工程学院,浙江杭州310014

出　　处：《化学研究与应用》2022年第5期959-963,共5页Chemical Research and Application

基　　金：浙江省自然科学基金资助项目(Y5110339)。

摘　　要：为了减少含氮消毒副产物亚硝基吡咯烷(NPYR)对饮用水安全的影响,采用臭氧/紫外线(UV-O_(3))技术对NPYR进行了研究,考察在不同反应条件下UV-O_(3)技术去除NPYR的效果及影响因素,探讨其降解机理和动力学规律。由试验结果得出,UV-O_(3)对于去除水中的NPYR作用效果明显;随着紫外线辐射强度、臭氧通入量的增加,NPYR的去除率有所提升;随着NPYR初试浓度的增加,NPYR的降解速率逐渐降低;溶液的pH值较大地影响了UV-O_(3)对NPYR的分解作用,碱性溶液中NPYR的分解速率明显低于酸性和中性溶液中的速率。根据动力学相关理论解析可知,UV-O_(3)联合技术降解NPYR的过程符合一级反应动力学方程。In order to reduce the impact of nitrogen-containing disinfection by-product nitrosopyrrolidine(NPYR)on drinking water safety,ozone/ultraviolet(UV-O_(3))technology was used to study NPYR,and UV-O_(3) technology to remove NPYR under different reaction conditions.The effect and influencing factors of sulphate,discuss its degradation mechanism and kinetic law.According to the test results,UV-O_(3) has a significant effect on the removal of NPYR in water;with the increase of ultraviolet radiation intensity and ozone input,the removal rate of NPYR has increased;As the initial concentration of NPYR increases,the degradation rate of NPYR gradually decreases;the pH value of the solution greatly affects the decomposition of UV-O_(3) on NPYR.The decomposition rate of NPYR in alkaline solution is significantly lower than that in acidic and neutral solutions.According to the analysis of kinetic related theories,the degradation process of NPYR by UV-O_(3) combined technology conforms to the first-order reaction kinetic equation.

关 键 词：含氮消毒副产物 饮用水安全 亚硝基吡咯烷 臭氧/紫外线 动力学 

分 类 号：X52[环境科学与工程—环境工程]