催化湿式氧化法处理高浓度吡唑甲醛肟生产废水的研究

在鼓泡式固定床反应器连续反应装置上对吡唑甲醛肟生产过程中产生的高浓度有机废水进行催化湿式氧化处理。实验表明制备的复合负载型催化剂CuO—MnO2-Cr2O3／ZrO2-CeO2在处理该废水时具有较好的催化活性。通过对反应温度、反应压力、反应空速、气液比和进水pH值等工艺条件的考察，得出最佳的工艺条件为：反应温度T=220℃，反应压力P=5．8MPa，空速=1．8h^-1，V（气）：V（水）=260：1，进水pH值=9，在此条件下CODer去除率达到95．2％。

Study on Catalytic Wet Oxidation of High-concentration Fenpyroximate Production Wastewater

Catalytic wet oxidation technology was used to treat with high concentration organic wastewater in continuous bubble columns reactor when pyrazolyl aldoxime was produced. The experimental results indicated that the catalyst of CuO -MnO2 -Cr2O3/ZrO2 -CeO2had a higher activity when handling fenpyroximate wastewater. The process conditions such as reaction temperature, reaction pressure, liquor space velocity, volume ratio of oxygen to wastewater and pH of wastewater were measured experimentally and the result showed that CODer removal rate could obtain 95.2% at the optimal reaction conditions as follows： reaction temperature 220℃, reaction pressure 5.8 MPa, liquor space velocity =1.8 h ^-1, V（oxygen） ： V（wastewater） =260： 1, wastewater pH =9.