Fenton试剂处理制药厂废水研究

采用Fenton试剂对制药厂废水进行催化氧化处理，分别考察了溶液pH、催化剂FeSO_47H_2O用量、H_2O_2（30％）用量、反应时间、H_2O_2投加次数及TiO_2用量对制药厂废水处理效果的影响。结果表明，当溶液pH为2．5，H_2O_2（30％）用量为12mL，FeSO_47H_2O_2用量为0．6g，反应时间为2．5h，双氧水投加3次及TiO：用量0．10g时，制药厂废水COD。，的处理效果最佳。实验结果还表明，TiO_2-Fenton试剂复合体系对制药厂废水的处理效率并不优于Fenton试剂对制药厂废水处理效率。

Treatment of Pharmaceutical Wastewater with Fenton Reagent

Pharmaceutical wastewater was oxidated catalitically using Fenton reagent. The effects of treatment conditions such as pH value of solution, dosage of FeSO_4 7H_2O, HEO_2 solution with content of 30% , and TiO_2 ,reaction time and addition times of H_2O_2, on the removal rate of COD were examined. The result showed the best treatment effect was obtained under the conditions as follows： pH = 2.5, dosages of FeSO4 ＂7H_2O, H_2O_2 solution with content of 30% , and TiO_2 were 0.6 g, 12 mL,0.10 g respectively, reation time of 2.5 hours and times for adding H202 solution of 3. The result also showed that the treatment efficiency for treating pharmaceutical wastewater using TiO_2 Fenton composite system is not better than that only using Fenton reagent.