Fe2+活化过一硫酸盐（Fe2+/PMS）是消除水中新型有机污染物（EOCs）的重要方法之一。文献中对Fe2+/PMS氧化EOCs的快、慢两段式反应动力学的研究偏离实际情况，且未考虑FeIV在该过程中的作用。以典型EOCs为目标污染物，本项目拟系统研究Fe2+/PMS工艺氧化EOCs的反应动力学，鉴定不同反应条件下Fe2+/PMS工艺中快、慢反应阶段FeIV、SO4•−和HO•的产生情况及机制，探明快、慢反应阶段反应机制的差异，甄别Fe2+/PMS工艺中影响活性氧化剂产生情况的因素，探究Fe2+/PMS工艺氧化EOCs时各种活性氧化剂的贡献，梳理不同活性氧化剂的贡献与EOCs的性质及结构的关系，确定FeIV与EOCs的二级反应速率常数。本项目的研究结果将不仅为Fe2+/PMS的实际应用及开发高效的PMS活化技术奠定理论基础，也将揭示FeIV与典型EOCs的反应特性，促进FeIV化学的研究。

Activation of peroxymonosulfate by ferrous ion (Fe2+/PMS) is one of the important methods for abating the emerging organic contaminants (EOCs) from the water. Many studies have investigated the oxidation kinetics of EOCs by Fe2+/PMS and observed that a rapid decay of EOCs occurred in the first few minutes, followed by a retarded second stage, where no appreciable degradation took place. In fact, most oxidation of EOCs completed before the first data point was collected, indicating that EOCs oxidation was much more rapid than that reported in the literatures. Furthermore, the generation of FeIV and its contribution in Fe2+/PMS process were overlooked in previous studies. Therefore, taking typical EOCs as target contaminants, this project will systematically determine the kinetics of EOCs oxidation by Fe2+/PMS process, identify the generation of FeIV, SO4•−, and HO• in the rapid and slow reaction phases, unravel the difference in the reaction mechanisms in the rapid and slow reaction phases. This study will also figure out the critical factors affecting the generation of active oxidants and determine the contribution of different active oxidants to oxidation of various EOCs. The correlation between the contributions of different active oxidants and the structural properties of EOCs will be built and mathematical model will be constructed to get the second order rate constants of EOCs oxidation by FeIV. The results of this study will build theoretical foundation for the real application of Fe2+/PMS process, development of new PMS activation technologies, and unraveling the reaction properties of FeIV toward different EOCs.