微波催化氧化联用技术处理敌百虫农药废水  

Microwave-catalytic oxidation technique for the treatment of trichlorphon agrochemical wastewater

作　　者：林业星[1] 刘慧 王子波[1] 

机构地区：[1]扬州大学环境科学与工程学院,江苏扬州225009 [2]扬州市广陵区环境保护局,江苏扬州225009

出　　处：《扬州大学学报（自然科学版）》2009年第4期40-44,共5页Journal of Yangzhou University：Natural Science Edition

基　　金：扬州大学科研基金资助项目(H0211077)

摘　　要：采用微波催化氧化联用技术处理敌百虫农药废水,分别讨论废水酸度、微波加热功率和微波处理时间对废水化学需氧量(chemical oxygen demand,COD)去除率的影响.结果表明:当废水pH为1、双氧水加入量为4 mL.L-1、活性炭加入量为8 g.L-1、微波加热功率为350 W、微波处理时间为5 min时,COD去除率为92.18%.动力学研究表明,在最佳条件下反应的表观过程近似符合一级反应规律,其动力学方程为ln(0ρ/ρ)=0.177 6t+0.027 9,速率常数k=0.177 6 min-1,相关系数为0.974 7,半衰期t1/2=3.902 min.Trichlorphon agrochemical wastewater was treated by microwave-catalytic oxidation hyphenated technique. The effects of wastewater acidity, microwave degradation power and microwave degradation time on the removal rate of COD were mainly studied. The results show that when pH of the wastewater is 1, the dosage of H2O2 is 4 mL · L^-1 ,the dosage of activated carbon is 8 g · L^-1, the microwave degradation power is 350 W, and the microwave degradation time is 5 min, the removal rate of COD is 92.18%. Kinetics study shows that the reaction process is approximately consistent to the first order reaction kinetics equation under the optimal conditions and its kinetic equation can be expressed as In （ρ0/ρ）=0. 177 6 t＋0. 027 9, whereas r=0. 974 7, the reaction velocity constant k=0. 177 6 min^-1 and the half life t1/2 =3. 902 min.

关 键 词：催化氧化 活性炭 微波辐照 敌百虫 农药废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]