Fenton试剂处理化纤废水的试验研究  

A Study of Fenton Reagent Treatment of Chemical Fiber Wastewater

作　　者：程爱华[1] 刘续[2] 李杰[2] 

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《内蒙古大学学报（自然科学版）》2013年第5期556-560,共5页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家水体污染控制与治理科技重大专项(NO.2012ZX07201-005);陕西省工业攻关计划(NO2012GY2-38);西安市科技计划项目(NO.CX12189WL09)资助项目

摘　　要：N-N二甲基甲酰胺(DMF)和N-N二甲基乙酰胺(DMAC)是化纤废水的主要污染物,具有毒性大,生物难降解,污染时效长的特点.本文研究了Fenton试剂法处理DMF和DMAC的效果,探讨了最佳处理条件及降解机理.结果表明:在pH=3,反应时间30min,原水浓度为250mg/L和500mg/L,H2O2投加量为3ml/L和5ml/L,FeSO4·7H2O投加量为1500mg/L和2000mg/L的条件下,DMF和DMAC的去除率达到49.70%和44.40%.通过紫外-可见光谱分析,可知Fenton试剂法破坏酰胺基团,将大分子物质破坏为小分子物质,为后续的生化处理提供条件.N-- N-- dimethyl formamide （DMF） and N-- N-- dimethyl acetamide （DMAC） are main pollutants of Chemical fiber wastewater, and their characteristics of toxic and non--degrad- ability,last a long time in the environment. The effects of Fenton reagent treating DMF and DMAC were studied,and the optimal treatment condition and degradation mechanism were explored. Re- suits show that DMF and DMAC removal efficiency reached 49.70% and 44. 4%. under conditions pH 3,reaction time 30 min,raw water concentration 250 mg/L and 500 mg/L, H202 3 ml/L and 5 ml/L,FeSO4 7H2O 1500 mg/L and 2500 mg/L. The UV--Visible spectrum of influents and efflu- ents showed that Fenton reagent destructed the C--N,C= O and broke macromoleeular into small molecules,which provide a beneficial condition for bio--treatment.

关 键 词：FENTON试剂 化纤废水 紫外-可见光谱 机理 

分 类 号：X703[环境科学与工程—环境工程]