UV/Fenton法对高浓度铬黑T染料废水的脱色与矿化  

Decolorization and Mineralization of High Concentration Eriochrome Black T Dyestuff Effluent by UV/Fenton Process

作　　者：王莹[1] 熊振湖[1] 

机构地区：[1]天津城市建设学院环境与市政工程系,天津300384

出　　处：《天津城市建设学院学报》2009年第1期49-52,56,共5页Journal of Tianjin Institute of Urban Construction

基　　金：天津市自然科学基金重点项目(07JCZDJC01700)

摘　　要：采用UV/Fenton高级氧化技术对偶氮染料铬黑T模拟废水进行了光催化降解,探讨了溶液的pH值、染料浓度、[H2O2]/[Fe2+]以及光照强度对脱色和矿化效果的影响.结果表明:UV能够有效地提高脱色速率,在紫外光下照射1 h、铬黑T初始浓度为100 mg/L时,脱色率可达到95%以上,矿化率可达70%以上.因此UV/Fenton方法对于处理类似铬黑T这种深色度、含芳香烃成分(UV254)的,并且溶解有机碳含量高的偶氮染料废水,在技术上是可行的.Photocatalytic degradation of artificial Eriochrome Black T （EBT） dyestuff effluent was investigated by the advanced oxidation processes UV/Fenton. The impact on decolorization and mineralization affected by pH value, [Fe^2＋]/[H2O2], initial concentration of dyestuff and intensity of irradiation was discussed. Result shows that UV-light can enhance the rate of decolorization effectively. For 100mg/L EBT dyestuff effluent, after one hour ultraviolet irradiation, the discolored rate is over 95% and the mineralizable rate is more than 70%. So, it is technically feasible to treat the azo-dyestuft effluent, similar to EBT, containing deep colourity, aromatic component （UV254） and high concentrations of solvented organic carbon using UV/Fenton reagent process.

关 键 词：铬黑T染料废水 PHOTO-FENTON 脱色 矿化 

分 类 号：X703[环境科学与工程—环境工程]