摘要
针对化工集装罐清洗废水中含酚废水浓度大的特点,采用湿式催化氧化法进行了较深入的研究。对硝酸铜-AC制备CuO/AC催化剂过程中的浸渍液浓度、焙烧温度、焙烧时间等影响因素进行探讨;用该催化剂催化氧化降解模拟苯酚废水,对反应温度、氧化剂投加量、催化剂投加量、反应时间等工艺参数进行优化,确定最佳反应条件并进行了应用研究。研究结果表明,硝酸铜-AC制备CuO/AC催化剂的最佳条件为:硝酸铜质量分数为3%,浸渍温度为30℃,浸渍时间为6 h,焙烧温度为300℃,焙烧时间为3 h。湿式催化氧化法处理苯酚废水的最佳工艺条件为:反应温度为170℃,反应时间为1 h,催化剂投加质量浓度为2 g/L,氧化剂H2O2按m(H2O2)∶m(COD)=3投加,含酚清洗废水的COD去除率达到95%以上,处理效果显著。
Aiming at the characteristic that the concentration of phenol-containing wastewater in tank containers is rather high, advanced study has conducted by wet catalytic oxidation process. The preparation conditions of catalyst parameters, including reaction temperature, dosages of oxidant and catalyst, reaction time, etc. are optimized. The best reaction conditions are confirmed and its application research is carried through. The results show that the optimum preparation conditions of CuO/AC catalyst are as follows：the concentration of Cu （NO3）2 is 3%, soakage temperature 30 ℃, soaking time 6 h, calcinating temperature 300 ℃, and calcinating time 3 h.The optimized reaction conditions of CWO for treating phenol wastewater are as follows ： reaction temperature is 170 ℃ ,reaction time 1 h ,dosage of catalyst 2 g/L, and dosage of oxidant m （H2O2）：m （COD）=3. Thus, the COD removal rate of the phenol-containing cleaning wastewater is above 95%, revealing a significant treatment effect.
出处
《工业水处理》
CAS
CSCD
北大核心
2010年第5期38-41,共4页
Industrial Water Treatment
基金
天津市塘沽区科技发展资金项目(2008CG10-04)
关键词
苯酚废水
湿式催化氧化法
催化剂
phenol-containing wastewater
wet catalytic oxidation
caralyzer
