采用Fenton／UV处理金属切削液废水的试验研究

采用Fenton／UV高级氧化方法处理金属加工行业产生的切削液废水，并通过正交试验得出最佳工作条件：pH值=2．5，p（Fe^2＋）=400mg／L，H2O2V（H2O2=30％]的投加量为24mL／L，每次投加V（H2O2）为4mL／L，投加时间间隔为45min，投加次数为6次，UV总作用时间=5h，同时在最佳工况下进行了5L废水的放大试验。小试及放大实验均证明：在此工作条件下，原水ρ（CODCr）由2100mg／L降至110mg／L左右，CODcr去除率达到95％，且出水其它各项指标均达到国家GB8978～1996《污水综合排放标准》二级排放标准。此数据具有工程应用的参考价值。

Study on Treatment of Metal Working Fluids Wastewater by Fenton/UV

The metal working fluids wastewater that produced in the metal manufacture industry was treated by the advanced oxidation technology of Fenton/UV. Through the orthogonal experiment, the optimal condition for the experiment was acquired, that was： initial pH = 25,p（Fe^2＋） = 400 mg/L,after uniform mixing adding H2O2（30%）24 mL/L in all ,each time adding H2O2 4 mL/L,the interval of each time being 45 minutes ,and adding 6 times. The total time of UV effect was about 5 hours. Meanwhile, according to the optimal condition the enlarging experiment of 5 L was made. Both the little experiment and enlarging experiment show that at tile optimal condition the CODcr concentration of effluence is reduced to about 110 mg/L from 2 100 mg/L, and each index of the total effluence reaches the second level of ＂Integrated Wastewater Discharge Standard＂ （GB 8978 - 1996）. The optimal condition data has the reference value in projects.