UV/Fenton法处理模拟水解聚丙烯酰胺废水研究

Study on UV/Fenton Degradation of Simulated Hydrating Polyacrylamide in Wastewater

在室温条件下,探讨了4种不同的氧化技术对模拟水解聚丙烯酰胺废水的降解效果,其最佳处理技术为UV/Fenton。采用UV/Fenton氧化处理水解聚丙烯酰胺污水,考察了pH值、反应时间、Fe2+/H2O2和H2O2的投加量等因素对处理效果的影响,并深入分析各影响因素对HPAM处理效果的作用机制。结果表明:室温下,pH=3,Fe2+/H2O2为1∶10,H2O2浓度分别为6mmol/L,经紫外灯照射30min后,HPAM的降解率能达到91.54%。

The influence of four different oxidation techniques on the degradation of hydrolyzed polyacrylamide(HPAM) was studied at ambient temperature,among which UV/Fenton was found to be the best.UV/Fenton was used to remove the HPAM from wastewater,the influence of various factors,such as pH,reaction time and ratio of Fe2+/H2O2 and concentration of H2O2 on the effect of HPAM removal was reviewed,and the mechanism of each influential factor was analyzed.The results show that the degradation rate of HPAM is over 91.54% within 30 min with ultraviolet light under the experimental conditions of 6mmol/L H2O2,1∶10 ratio of Fe2+/H2O2,when the pH value is 3.0.It is proved that HPAM removal using UV/Fenton degradation is feasible.