MBR处理含7-ACA废水的影响因素研究

Factors Influencing Treatment of 7-ACA-containing Wastewater by MBR

采用MBR工艺处理含7-ACA废水，考察了进水7-ACA浓度、DO浓度、pH值、温度等因素对处理效果的影响。结果表明，随着进水7-ACA浓度的升高，对7-ACA的去除效果先升高后下降，当进水7-ACA浓度为30mg／L时，对7-ACA的去除率最高，为65．6％；另外，在进水7-ACA浓度为100mg／L的条件下，MBR处理含7-ACA废水的最佳参数如下：DO浓度为2．5～3．5mg／L、pH值为7～9、温度为35℃。

The MBR process was used to treat 7-aminocephalosporanic acid （7-ACA）-containing wastewater. The effects of DO, pH, temperature and influent 7-ACA concentration were investigated. The results indicated that the removal efficiency of 7-ACA was increased first and then decreased with the increasing of influent 7-ACA concentration. When the influent 7-ACA concentration was 30 mg/L, the 7- ACA removal efficiency was the highest, which was 65.6%. In addition, when the influent 7-ACA concentration was 100 mg/L, the optimal parameters for treating 7-ACA-eontaining wastewater in MBR were as follows ： DO 2.5 to 3.5 rag/L, pH 7 to 9 and temperature 35 ℃.