The combination of microwave (MW) and persulfate (PS, including peroxodisulfate (PDS) and peroxymonosulfate (PMS)) has been proved to be a potential method for degradation of organic pollutant. In this study, the degradation of chlorpyrifos (CPF) in soil by MW/PDS and MW/PMS was investigated. As a result, a synergistic effect was created between MW and PS. Compared with conventional heating (CH) providing thermal effect, MW also played a special non-thermal effect for PDS activation, causing superior CPF degradation by MW/PDS. However, the similar degradation efficiency of CPF in MW/PMS system and CH/PMS system indicated mainly a thermal effect was played by MW in MW/PMS system. The generation of reactive oxygen species (ROS) was explored in detail, SO₄^•− and ^•OH, generated in water, was the main ROS in MW/PDS system, and ¹O₂, generated in soil/water interface, was the main ROS in MW/PMS system. 100:1 of PS to CPF molar ratio, 1:1 of water and soil mass ratio were selected as appropriate reaction conditions. Environmental factors including pH and humic acid showed different effects on CPF degradation in MW/PDS system and MW/PMS system. Moreover, the degradation products were different due to different selectivity of ROS, reaction pathways were predicted based on Gaussian calculation and detected products. In addition, toxicity prediction, energy estimation and the applicability in different types of soils were investigated for practical significance of CPF degradation by MW/PS. Therefore, MW/PS provides a promising approach for remediation of CPF-contaminated soils.

微波（MW）和过硫酸盐（PS，包括过二硫酸盐（PDS）和过一硫酸盐（PMS））的组合已被证明是一种潜在的有机污染物降解方法。在这项研究中，研究了 MW/PDS 和 MW/PMS 对土壤中毒死蜱 (CPF) 的降解。结果，在 MW 和 PS 之间产生了协同效应。与提供热效应的传统加热 (CH) 相比，MW 还对 PDS 活化起到了特殊的非热效应，导致 MW/PDS 对 CPF 产生了优异的降解作用。然而，CPF 在 MW/PMS 系统和 CH/PMS 系统中的相似降解效率表明 MW 在 MW/PMS 系统中主要发挥了热效应。详细探讨了活性氧 (ROS) 的产生，SO ₄ ^•−和^•MW/PDS 体系中主要的 ROS 是水中生成的 OH，¹ O ₂，在土壤/水界面中产生，是 MW/PMS 系统中的主要 ROS。选择PS与CPF摩尔比100:1、水土质量比1:1为适宜的反应条件。包括 pH 和腐植酸在内的环境因素对 MW/PDS 系统和 MW/PMS 系统中的 CPF 降解表现出不同的影响。此外，由于ROS的选择性不同，降解产物也不同，基于高斯计算和检测产物预测了反应途径。此外，还研究了毒性预测、能量估计和在不同类型土壤中的适用性，以了解 MW/PS 降解 CPF 的实际意义。因此，MW/PS 为修复 CPF 污染的土壤提供了一种很有前途的方法。