光助Fenton试剂法降解染料废水的研究

Study on Degradation of Dyes Wastewater by Photo-assisted Fenton Reagent

利用芬顿试剂法在紫外光下对活性翠兰废水进行处理,研究pH、H2O2浓度、Fe2+浓度和反应时间等4个主要因素对光催化氧化效果的影响,得出适宜的操作条件为:当Fe2+的浓度为0.32 mmol/L,H2O2的浓度为19.4 mmol/L,pH为4,反应60 min,体系中活性翠兰的去除率可达到77.0%,另外,还研究了不同光源条件下和草酸加入对光催化氧化反应的影响,结果发现光强度增大和草酸的加入都能提高体系的降解率。

Fenton was used to degrade aqueous solution of reactive turquoise blue K-GL under ultraviolet irradiation. The effects of four main factors, namely the amount of H2O2. the concentration of Fe2＋, pH values and reaction time on the photocatalysis oxidation efficiency were studied in the experiment. The removal ratio of reactive turquoise blue K-GL could reach 77.0 % under the following conditions： Fe2 ＋concentration of 0.32 mmol/L, H2O2 concentration of 19.4 mmol/L, pH value of 4.0, reaction time of 60 min. Moreover, the effects of light source and the introduction of oxalic acid were also studied. It was found that the increase of the intension of light and the amount of oxalic acid could improve the removal ratio of the system.