超声-芬顿法降解工业染料中间体废水  

Degradation of Dye Intermediate Industrial Wastewater by Ultrasound-Fenton Process

作　　者：戴丽雅[1] 张宏波[1,2] 王谦[1] 孙同华[1] 贾金平[1] 

机构地区：[1]上海交通大学环境科学与工程学院 [2]上海交通大学材料科学与工程学院,上海200240

出　　处：《水处理技术》2017年第4期70-72,78,共4页Technology of Water Treatment

基　　金：国家自然基金(21377083);中国博士后基金(2015M581625);上海张江国家自主创新示范区专项发展资金重点项目(21505QPB108006)

摘　　要：采用超声-芬顿催化氧化技术处理含高浓度2-甲基-4-氨基-5-甲氧基苯磺酸的工业染料中间体废水。通过设置单因素控制实验考察了超声功率、pH、温度、n(H_2O_2)/n(Fe^(2+))、H_2O_2投加量及投加方式、反应时间对水样中COD去除率的影响。结果表明在最佳反应条件为超声功率250 W,pH为3,T=80℃,n(H_2O_2)/n(Fe^(2+))=10.9:1时,逐滴滴加0.5 mol/L H_2O_2,超声协同反应40 min后,COD的去除率可达92.26%,出水色度从800倍降为1倍。此外,在基准条件下对超声-芬顿法处理染料中间体废水的动力学研究发现,反应初期废水的COD降解符合表观一级动力学反应。The ultrasound-Fenton catalytic oxidation technology was employed to treat the dye intermediate industrial wastewater withhigh concentration of 2-methyl-4-amino-5-methnxybenzensulfonic acid.The effects of treating factors including ultrasound power, pH, temperature, H2O2/Fe2＋ molar ratio, H2O2 concentration andreactiontime on the degradation efficiency of COD were investigated by single factor control experiment.Under the optimal conditions with ultrasound powerof 250 W, pH value of 3.0, temperature of 80 ℃, H2O2/Fe2＋ molar ratio of 10.9：1, H2O5 concentration of 0.5 mol/L, reacting time of 40min,thedegradation efficiency of COD could reach up to 92.26% niter the treatment by the ultrasound-Fenton process. Meanwhile, the effluent color dilution deceased from 800 to 1. Via operating under the base conditions,it is shown that the degradation of COD during the beginning of the reaction confirmed to the pseudo-first order kinetics.

关 键 词：超声 芬顿 脱色 氧化降解 

分 类 号：X788[环境科学与工程—环境工程]