Abstract：
Chlorine dioxide (ClO2) has emerged as a broad-spectrum, safe, and effective disinfectant due to its high oxidation efficiency and reduced formation of organochlorinated by-products during application. This article provides an updated overview of ClO2-based oxidation processes used in water treatment. A systematic review of scientific information and experimental data on ClO2-based water purification procedures is presented. Concerning ClO2-based oxidation derivative problems, the pros and cons of ClO2-based combined processes are assessed and disinfection by-product (DBP) control approaches are proposed. The kinetic and mechanistic data on ClO2 reactivity towards micropollutants are discussed. ClO2 selectively reacts with electron-rich moieties (anilines, phenols, olefins, and amines) and eliminates certain inorganic ions and microorganisms with high efficiency. The formation of chlorite and chlorate during the oxidation process is a crucial concern when utilizing ClO2. Future applications include the combination of ClO2 with ferrous ions, activated carbon, ozone, UV, visible light, or persulfate processes. The combined process can reduce by-product generation while still ensuring ClO2 sterilization and disinfection. Overall, this research could provide useful information and new insights into the application of ClO2-based technologies.
摘要：
二氧化氯（ClO2）已经成为一种广谱，安全,和有效的消毒剂，由于其高氧化效率和减少有机氯副产物在应用过程中的形成。本文提供了水处理中使用的ClO2基氧化工艺的最新概述。提出了有关基于ClO2的水净化程序的科学信息和实验数据的系统综述。关于基于ClO2的氧化衍生物问题，评估了基于ClO2的组合工艺的优缺点，并提出了消毒副产物（DBP）控制方法。讨论了ClO2对微污染物反应性的动力学和机理数据。ClO2选择性地与富电子部分反应(苯胺，酚类物质,烯烃，和胺），并高效消除某些无机离子和微生物。在氧化过程中亚氯酸盐和氯酸盐的形成是使用ClO2时的关键问题。未来的应用包括ClO2与亚铁离子的组合，活性炭,臭氧,UV,可见光,或过硫酸盐工艺。组合工艺可减少副产物产生,同时仍确保ClO2灭菌和消毒。总的来说,这项研究可以为基于ClO2的技术的应用提供有用的信息和新的见解。
