微波诱导氧化处理苝系染料废水  

Microwave induced oxidation process for perylene dye wastewater treatment

作　　者：关晓彤[1] 于大伟[1] 李良[1] 杨旭鹏[1] 

机构地区：[1]沈阳工业大学石油化工学院,辽宁辽阳111003

出　　处：《沈阳工业大学学报》2008年第1期112-116,共5页Journal of Shenyang University of Technology

基　　金：辽宁省教育厅基金资助项目(05L274)

摘　　要：为达到采用微波诱导氧化工艺(MIOP)处理苝系染料废水的目的,分别考察了活性炭种类、活性炭用量、微波辐射时间、微波功率、H2O2用量和pH值等因素对处理效果的影响.结果表明,6 g活性炭与50 mL苝系废水混合,在微波功率为480 W,辐射时间6 min,H2O2用量2.0 mL,FeSO4用量0.07 g,pH=3的条件下,对废水COD的去除率达到98.95%.微波诱导氧化、活性炭吸附和单独微波辐射3种不同工艺的对比实验表明,微波诱导氧化有明显的优越性,且不会对环境造成二次污染.动力学研究表明,该氧化过程符合一级动力学规律,反应速率常数K=0.086 min-1,反应半衰期t1/2=8.06 min.In order to realize the treatment of perylene dye wastewater using microwave induced oxidation process, the effect of such factors as type and amount of activated carbon, microwave power, irradiation time, amount of H2O2 and pH on removal rate of wastewater were investigated. The result shows that when 6 g activated carbon is mixed with 50 mL perylene dye wastewater, the microwave power is 480 W, irradiation time is 5 min, H2O2 is 2.0 mL and FeSO4 is 0.07 g, pH equals to 3, the COD removal rate of perylene dye wastewater is 98.95 %. The comparison among three treatment processes including microwave induced oxidation, activated carbon adsorption and simple microwave irradiation reveals that microwave induced oxidation is more effective and has no secondary pollution to environment. The research on kinetics suggests that the process of the microwave induced oxidation accords with the first-order reaction rule, where the reaction velocity constant is 0.086 rnin-1 and the half-life period is 8.06 min.

关 键 词：微波诱导氧化工艺 活性炭 FENTON试剂 苝系染料废水 废水处理 

分 类 号：X703[环境科学与工程—环境工程]