UV／Fenton法对高浓度铬黑T染料废水的脱色与矿化

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]／Fe^2＋]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1h、铬黑T初始浓度为100mg／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．

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

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.