Abstract: In this article, MnO2/CeO2 catalyst was used to treat aniline wastewater by supercritical water oxidation (SCWO). The results indicated that the catalyst had an extremely high activity, which meant a lower temperature and pressure for the complete removal of aniline. Through analyzing the influence of temperature, pressure, residence time, and degree of excess oxygen, the optimal reaction condition was as follows：T=380 ℃, p=26 MPa, t=5 s, and degree of excess oxygen 15, under which the aniline content in the effluent comes to lower than 1 mg/L, and TOC value less than 28.56 mg/L, after reaction all of which met the discharge demand of GB 8979—1996.

摘要： 研究了在催化超临界水氧化体系中苯胺废水的处理（催化剂采用MnO2/CeO2），结果表明该催化剂有较高的催化活性，使苯胺彻底去除的温度、压力大大降低。实验得出了反应的最佳工艺条件为：温度380 ℃、压力26 MPa、停留时间5 s、氧气过量15倍，反应后的苯胺含量<1 mg/L、总有机碳（TOC）含量28.56 mg/L，二者均达到了国家的排放标准。