KMnO_(4)、UV/H_(2)O_(2)预氧化对微污染水中消毒副产物生成势影响研究  

Study on the Influence of KMnO_(4),UV/H_(2)O_(2)Pre-oxidation on the Generation Potential of Disinfection by-Products in Slightly PollutedWater

作　　者：员建 李若楠[1,2] 徐楷 苑宏英 高富 YUAN Jian;LI Ruonan;XU Kai;YUAN Hongying;GAO Fu(School of Environmental and Municipal Engineering,Tianjin Chengjian University;Tianjin Key Laboratory of Aquatic Science and Technology:Tianjin 300384,China)

机构地区：[1]天津城建大学环境与市政工程学院 [2]天津市水质科学与技术重点实验室,天津300384

出　　处：《水处理技术》2022年第5期100-103,113,共5页Technology of Water Treatment

基　　金：国家重点研发计划“政府间国际创新合作”重点专项(2019YFE0122400);滨海工业带高盐废水中无机盐分质结晶与资源(2018195);科技成果转化奖励资助项目(KJZHzCA1749)。

摘　　要：采用高锰酸钾(KMnO_(4))、紫外/过氧化氢(UV/H_(2)O_(2))两种预氧化方式,通过改变氧化剂的投加量对三卤甲烷(THMs)、卤乙腈(HANs)生成势去除效果进行研究。结果表明两种预氧化方式均能很好的削减生成势,其中UV/H_(2)O_(2)预氧化效果较佳。在KMnO_(4)预氧化过程中,KMnO_(4)投加量为5 mg/L时,THMs、HANs生成势去除率分别为82.7%、80.2%;在UV/H_(2)O_(2)预氧化过程中,紫外光强12 W,H_(2)O_(2)投加量为5 mg/L时,THMs、HANs生成势减少幅度较大,生成势去除率分别增长到83.1%、83.7%。当两种预氧化方式的氧化剂投加量均大于5 mg/L时,两种物质生成势去除率增长缓慢并趋于平缓。Using different pre-oxidation methods(KMnO_(4),UV/H_(2)O_(2)),the removal effect of the formation potential of THMs and HANs was studied by changing the amount of oxidizing agent.During the pre-oxidation of KMnO_(4),when the additive amount of KMnO_(4) was 5 mg/L,the removal rates of THMs and HANs generated potential were 82.7%and 80.2%,respectively.In the pre-oxidation process of UV/H_(2)O_(2),when the UV light intensity was 12 W and the H_(2)O_(2)dosage was 5 mg/L,the generation potential of THMs and HANs decreased greatly,and the generation potential removal rate increased to 83.1%and 83.7%,respectively.When the amount of oxidant added in both pre-oxidation modes was more than 5mg/L,the removal rate of the formation potential of the two substances increased slowly and tended to be flat.

关 键 词：预氧化 THMS HANS 生成势 去除率 

分 类 号：TU991.2[建筑科学—市政工程]