利用超声辅助非均相Fenton法和等体积浸渍法制备Fe/ZSM-5非均相Fenton催化剂，并对模拟丙烯腈废水进行降解反应。利用XRD、SEM、氮气吸附-脱附法、BET等分析手段对制备旳Fe/ZSM-5催化剂进行表征与分析。通过调整反应体系化学参数，优化了工艺条件，并深入分析了丙烯腈降解机理。单因素实验验证的工艺条件为：超声频率为40 kHz，超声功率为400 W，废水的初始pH为5.0，H₂O₂的浓度为20 mmol/L，Fe/ZSM-5催化剂的加入量为1.5 mg/L，反应温度为25℃，此时降解率为86.1%，处理效果最佳。结果表明，非均相Fe/ZSM-5催化剂具有高催化性能，同时超声在体系中促进了羟基自由基（·OH）的产生，进一步提高了催化剂的活性，有利于丙烯腈的降解。

A heterogeneous Fenton catalyst Fe/ZSM-5 is successfully prepared by using the impregnation method and the heterogeneous Fenton method assisted by ultrasound and is used to degrade the simulated acrylonitrile wastewater.The structure characterization of the catalyst is analyzed by X-ray diffraction (XRD),scanning electron microscope (SEM),N₂ adsorption-stripping and specific surface area test (BET).The optimum technological conditions are obtained by adjusting the chemical parameters of the reaction system and the degradation mechanism of acrylonitrile is analyzed in depth.The best treatment effect can be achieved with a degradation rate of 86.1% under the optimum process conditions obtained through orthogonal experiment,which include 40 kHz of ultrasonic frequency,400 w of ultrasonic power,5.0 for the initial pH of wastewater,20 mmol·L^-1 for the concentration of H₂O₂,1.5 mg·L^-1 for the dosage of Fe/ZSM-5 catalyst and temperature at 25℃.It is verified that Fe/ZSM-5 catalyst has high catalytic performance.Ultrasound can promote the hydroxyl free radical (·OH) to generate in the system and improve the activity of the catalyst,which is helpful to degradation of acrylonitrile.

王艺(1993-),女,硕士研究生,研究方向为资源有效利用,981895010@qq.com。