摘要
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FeSO4.7H2O用量、H2O2(30%)用量、反应时间、H2O2投加次数及TiO2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,H2O2(30%)用量为12 mL,FeSO4.7H2O用量为0.6 g,反应时间为2.5 h,双氧水投加3次及TiO2用量0.10 g时,制药厂废水CODcr的处理效果最佳。实验结果还表明,TiO2-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。
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.
出处
《精细石油化工进展》
CAS
2012年第1期31-34,共4页
Advances in Fine Petrochemicals
