Fenton氧化法预处理高浓度制药废水的实验研究

The Experimental Study on the Fenton Oxidation Pretreatment of High Concentration Pharmaceutical Wastewater

采用Fenton法对高浓度制药废水进行预处理实验。主要考察了Fenton试剂氧化法预处理高浓度制药废水的影响因素,主要讨论pH值、FeSO4·7H2O投加量、反应时间对Fenton氧化工艺对制药废水中CODCr处理效果的影响。实验结果显示,pH值为4、反应时间100 min、FeSO4·7H2O投加量为0.024 mol/L、H2O2/Fe2+投加比为11∶1,CODCr处理去除率为52.1%,可生化性BOD/COD为0.57,效果最为理想。

The high concentration pharmaceutical wastewater was pretreated by Fenton method,the influence of Fenton reagent oxidation pretreatment of high concentration pharmaceutical wastewater was studied. The effect on CODCr treatment of pharmaceutical wastewater was discussed,the influence factor included the value of pH,the dosage of FeSO4·7H2O,and reaction time on Fenton oxidation. The experimental results showed that the pH value was 4,the reaction time was 100 min,the dosage of FeSO4·7H2O was 0. 024 mol /L,the dosage ratio of H2O2/Fe2 ＋was 11 ∶1,the CODCr removal was 52. 1%,and the biodegradability of the BOD /COD was 0. 57. Under this condition,the effect was the most ideal.