光催化反应器中UV/Fenton光催化降解敌百虫农药废水的研究  

Study on Photocatalytic Degradation of Waste Water of Trichlorfon by Means of UV/Fenton Technology in Photoreactor System

作　　者：徐明芳[1] 彭延治[2] 陈心满[2] 葛湘锋[2] 

机构地区：[1]暨南大学生物工程系,广东广州510632 [2]暨南大学水生生物研究所,广东广州510632

出　　处：《广东化工》2007年第5期62-66,共5页Guangdong Chemical Industry

基　　金：广东省科技计划项目(NO:2KM02501G)资助项目

摘　　要：在光催化反应器中,采用UV/Fenton光催化氧化技术,通过单因素分析实验及正交实验,对影响敌百虫农药废水的光催化降解过程中各因子进行分析及优化,研究结果表明:敌百虫有机磷农药光催化氧化降解率和COD去除率在A2B2C3D3及A3B2C3D3两种条件下都达到85%以上。当最适工艺条件控制为H2O2浓度7 mmol/L、Fe2+/H2O2比值1∶5,光照强度2000μw/cm2,pH为3,光照时间为90 min时,其中COD去除率、有机磷降解率分别为86.8%、89.9%以上,这表明UV/Fenton光催化氧化降解对敌百虫农药的降解具有较为显著的效果,为将来的应用奠定基础。The photocatalytic decomposition on waste water of trichlorfon in photoreactor system had been studied by the UV/Fenton technology. The effects of influential factors on decomposition of trichlorphon in UV/Fenton system were investigated by means of single-factor experiment and multiple-factors orthogonal experiment. The results showed that the photo-degradation rate of trochlorphon and COD eliminating rate arrived up to 85% under A2B2C3D3 or A3B2C3D3 conditions. The photo-degradation rate of trochlorphon and COD removal reached to 86.8% and 89.9% when the optimal conditions determined by orthogonal experiment were as follows： 5 mmoFL of H2O2, the ratio of Fe^2＋/H2O2 at 1 ： 5, 2000 μw/cmaof irradiation intensity, the initial pH value at 3 and 120 min of the reaction time. This results indicated that the UV/Fenton photo-degradation had obvious effect to degrade trichlorfondipterex, it was a basis to furture applications.

关 键 词：UV/Fenton光催化降解 敌百虫农药 光催化反应器 

分 类 号：TQ171.4[化学工程—玻璃工业]