摘要
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,ρ(Fe2+)=400mg/L,H2O2[V(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。
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.
出处
《环境科技》
2009年第6期6-9,共4页
Environmental Science and Technology
基金
科技部中欧科技合作项目(项目编号:NO.3)
四川省环境工程自控技术高校重点实验室资助
