净水技术2025，Vol.44Issue(4)：56-61,6.DOI:10.15890/j.cnki.jsjs.2025.04.007
紫外/高锰酸钾高级氧化技术去除饮用水中碘帕醇的特性分析
Analysis of UV/Permanganate Advanced Oxidation Technology for Iopamidol Removal in Drinking Water
摘要
Abstract
[Objective]Iodinated contrast medias have been continuously detected in the drinking water sources,which has become a growing concern in the water supply industry.In the context of non-effective treatment by conventional processes in drinking water treatment plants,advanced oxidation processes has potential application prospects due to their strong oxidation ability.[Methods]The degradation of typical iodinated contrast media during the untraviolet(UV)/permanganate advanced oxidation was investigated systematically in this paper.In the experiment,the performance of iopamidol degradation under different experimental conditions(different pH,permanganate dosages and concentrations of humic acid)was studied in detail.[Results]The result showed that the UV/permanganate advanced oxidation technology could effectively degrade iopamidol[psedudo-first-order constants(kobs)=0.003 71 cm2/mJ],the kobs of UV alone and permanganate oxidation was 0.001 13 cm2/mJ and 0,respectively).The degradation rate decreased by 58.42%with pH value increasing from 5.0 to 9.0.Moreover,the higher initial dosage of permanganate was applied,the faster degradation of iopamidol was found.Notably,the degradation rate of iopamidol during the UV/permanganate advanced oxidation was inhibited with the addition of humic acid.[Conclusion]The main reaction mechanism of iopamidol degradation during the UV/permanganate advanced oxidation is due to the formation of reactive species from permanganate photolysis,and the degradation of iopamidol is favored under neutral and acidic conditions.However,the specific optimal parameters need further tests based on actual water quality conditions.关键词
碘帕醇/紫外(UV)/高锰酸钾/高级氧化技术/竞争动力学/饮用水处理Key words
iopamidol/untraviolet(UV)/permanganate/advanced oxidation technology/competitive kinetics/drinking water treatment分类
土木建筑引用本文复制引用
高泽晨..紫外/高锰酸钾高级氧化技术去除饮用水中碘帕醇的特性分析[J].净水技术,2025,44(4):56-61,6.基金项目
上海市青年科技启明星培育(扬帆专项)项目(22YF1444500) （扬帆专项）
上海市政工程设计研究总院(集团)有限公司科研项目(K2022J028A) （集团）
