摘要：

采用镀铜铁屑/H₂O₂法预处理华北油田酸化废水，考察了初始pH、H₂O₂加入量、镀铜铁屑加入量和反应时间对COD_Cr去除率的影响。实验结果表明，镀铜铁屑/H₂O₂法比较适宜的工艺条件:初始pH为3.52、H₂O₂加入质量浓度为40mg/L、镀铜铁屑加入质量浓度4g/L、反应时间30min，此时COD_Cr去除率达到90.2%，为酸化废水的进一步处理提供了有利的条件。

关键词: 镀铜铁屑, 内电解, 预处理, 酸化废水

Abstract:

H₂O₂/copperized iron powder system is used for treating the acidized wastewater in North China Oilfield. The effects of initial pH, H₂O₂dose, copperized iron powder dose and reaction time on COD Cr removal efficiency have been studied respectively. The results indicate that technical parameters suitable for pretreatment are:initial pH 3.52, H₂O₂dose 40 mg/L, copperized iron powder dose 4 g/L and reaction time 30 min. The COD _Cr removal rate can reach 90.2%, which provides relatively helpful environment for the next procedure.

Key words: copperized iron powder, inner electrolysis, pretreatment, acidized wastewater

中图分类号: 

• X703.1

• X741