UV／Fenton处理苯酚废水的研究

采用UV／Fenton联合体系降解苯酚模拟废水，苯酚的初始质量浓度为300mg／L，COD。的初始质量浓度为760mg／L。探讨了pH值、H202（30％）和FeSO4·7H2O投加量、反应时间等因素对苯酚和CODcr去除率的影响。结果表明，UV／Fenton联合体系降解苯酚废水的最佳工艺条件是：溶液pH值为3、H2O2投加量为2．5mL／L、FeS04·7H20投加量为0．020g／L、反应时间为90min。此时，苯酚的去除率为95％，CODcr的去除率为90％。UV／Fenton联合体系能较好地处理苯酚废水。

Treatment of phenol-containing wastewater by UV-Fenton process

UV-Fenton process was used to treat simulant phenol-containing wastewater, the initial mass concentrations of phenol and CODc4 were 300 and 760 mg/L respectively. The effects of pH value, dosage of H202（30%） and FeSO4 7H20, reaction time and some other factors on the removal rates of phenol and CODcr were discussed. The results showed that, the optimal condition for UV-Fenton process treating phenol-containing wastewater was as follows： the solution pH value was 3, the dosage of H202 and FeSO4-7H20 were 2.5 mL/L and 0.020 g/L respectively, the reaction time was 90 min. Under the above condition, the removal rates of phenol and CODcr reached 95% and 90% respectively. It could be seen that, UV-Fenton process was effective for the treatment of phenol-containing wastewater.