日光/TiO_2-Fenton试剂处理吲哚废水提高去除率  

Improvement of indole wastewater treatment by solar light/TiO_2-Fenton

作　　者：陈頔[1] 董晓丽[1] 马春[1] 张新欣[1] 李雪[1] 剧锦亮[1] 

机构地区：[1]大连轻工业学院化工与材料学院,辽宁大连116034

出　　处：《大连轻工业学院学报》2006年第4期248-251,共4页Journal of Dalian Institute of Light Industry

基　　金：辽宁省教育厅A类基础研究计划资助项目(05L078)

摘　　要：传统的吲哚废水处理是利用Fenton试剂,虽然简单快速,但有机物矿化程度不充分,易形成中间产物。本实验分别采用Fenton试剂及日光/TiO2-Fenton试剂处理毒性大、难生物降解的吲哚废水。Fenton试剂处理的最佳工艺条件:n(Fe2+)∶n(H2O2)=1∶6,pH=3.0,反应时间为120 min。日光/TiO2-Fenton试剂处理的最佳工艺条件:n(Fe2+)∶n(H2O2)=1∶6,pH=2.5,m(TiO2)=0.2 g,反应时间为120 min。在各自的最佳工艺条件下,日光/TiO2-Fenton试剂的去除率达到96.62%,比Fenton试剂单独处理时去除率提高22.78%。Conventionally, indole wastewater is treated by using Fenton as reagent. It is simple and high speed but poor in treatment capacity with intermediate products. Solar light/TiO2-Fenton reagent is a prospective alternative. This paper reports the experiments on each reagent. The following are the optimum treatment conditions by using Fenton and solar light/TiO2-Fenton, respectively： for Fenton, mole ratio of Fe^2＋and H2O2 is 1 ： 6, pH is 3.0, and reaction time is 120 min; for solar light/ TiO2-Fenton, mole ratio of Fe^2＋and H2O2 is 1 ： 6, pH is 2.5, the amount of TiO2 is 0.2 g, and reaction time is 120 min. Under the optimum condition of its own, the removal rate of the latter achieves 96.62%, while that of the former is 73.84%.

关 键 词：吲哚废水 处理 FENTON 日光/TiO2-Fenton 

分 类 号：X703.5[环境科学与工程—环境工程]