Fenton试剂对油脂废水深度处理的试验  

Experiment of Advanced Treatment for Grease Wastewater with Fenton Reagent

作　　者：王芳[1] 胡凯泉[1] 刘富安[1] 文树龙 王杰[1] 

机构地区：[1]湖南农业大学资源环境学院,湖南长沙410128

出　　处：《净水技术》2015年第4期47-50,共4页Water Purification Technology

摘　　要：油脂废水经UASB、MSBR处理后的出水COD为200 mg/L左右、色度为100倍,未达到《污水综合排放标准》(GB8978—1996)的一级排放标准。试验以该出水为研究对象,用Fenton正交试验。结果表明反应时间对该体系影响最大,其次是H2O2投加量、Fe SO4·7H2O投加量、初始反应p H。通过单因素优化试验,得出最佳处理条件:反应时间为120 min、[H2O2]为0.75 m L/L、[Fe SO4·7H2O]为0.5 g/L、初始反应p H为4.5。在该条件下,COD去除率达到67%,色度去除率达到55%。COD and color of grease wastewater treated by UASB and MSBR were about 20 mg/L and 100 times, respectively, which can＇t meet the first class of standard of sewage compressive discharge （ GB 8978--1996 ）. As research object, treated grease wastewater was studied by orthogonal test using Fenton reagent. The results show that time has the greatest effect on reaction system, the following factors are dosage of H2O2 , dosage of FeSO4· 7H2O and initial pH. After experiment optimization, the optimal treatment condition are obtained, which are as follows ： reaction time is 120 min, [ H2O2 ] is 0.75 mL/L, [ FeSO4· 7H2O ] is 0.5 g/L, initial pH is 4.5. Under such condition, removal rate of COD is 67% and removal rate of Color is 55%.

关 键 词：FENTON试剂 高级氧化 羟基自由基 油脂废水 深度处理 

分 类 号：X703[环境科学与工程—环境工程]