【作者】 刘勰民； 金津； 彭璟； 张锋； 张志炳；

【Author】 Xieming Liu;Jin Jin;Jing Peng;Feng Zhang;Zhibing Zhang;School of Chemistry and Chemical Engineering, Nanjing University;Nanjing Institute of Microinterface Technology Co., Ltd;Nanjing Polytechnic Institute;

【机构】 南京大学化学化工学院； 南京延长反应技术研究院； 南京科技职业学院；

【摘要】 湿式氧化(WAO)是一种高效处理高盐高COD废水且环境友好的技术,但它具有高温高压、高投资和高风险的特点。因此,通过开发湿式氧化的强化技术,降低反应温度压力以及安全风险,是解决湿式氧化技术处理工业废水规模化应用的关键环节。本文对目前已推广应用的催化湿式氧化(CWAO)和微界面湿式氧化(M-WAO)两种主要的湿式氧化技术进行了综述。评价了CWAO采用的各种均相和非均相催化剂在不同污染物处理中的性能,指出了CWAO面临的二次污染以及催化剂失活等问题。介绍了M-WAO的理论方法和装备结构,同时也讨论了M-WAO在工业实践中的应用情况。指出该技术可高效处理多种工业过程排放的高盐难降解高COD有机废水,显著降低装置投资和处理成本,同时可提高本质安全性。更多还原

【Abstract】 Wet air oxidation(WAO) is an efficient and environmentally friendly technology for treating high-salinity and high-COD wastewater. However, its practical application often requires high temperature and high pressure, leading to high investment costs, high energy consumption, high maintenance costs, and low inherent safety. Therefore, the enhancement of the WAO process has become an urgent issue.This article provides a review of the two main methods for enhancing WAO: catalytic enhancement and micro-interface enhancement. For catalytic wet air oxidation(CWAO),the performance of various homogeneous and heterogeneous catalysts in treating different pollutants is evaluated, and the challenges such as secondary pollution and catalyst deactivation are identified. Furthermore, a summary and analysis of Microinterfacial enhancement wet air oxidation(M-WAO) are presented, including the theoretical approaches and equipment system construction. The application of M-WAO technology in industrial practice is discussed, highlighting its ability to efficiently treat high-salinity organic wastewater in industrial processes and significantly reduce investment and operating costs of wastewater treatment systems.更多还原