绿色水处理剂高铁酸盐在水处理领域中的应用进展

高铁酸盐是饮用水和废水处理中一种多功能绿色环保水处理剂,因其具有高效的氧化、混凝、消毒杀菌能力,且不产生有毒有害的物质,在水处理领域中已受到广泛关注。为全面、系统地剖析高铁酸盐在水处理领域中现有的研究成果,运用知识图谱分析工具VOSviewer对来自中国知网(CNKI)数据库和Web of Science(WOS)数据库的1038篇文献进行了可视化定量分析并辅助定性分析。结果表明:1975—2019年期间,高铁酸盐在水处理领域中应用的研究历经了起步、快速发展、相对稳定的三个阶段;从关键词共现网络图谱分析可知,现阶段的研究热点主要集中在高铁酸盐对饮用水消毒的副产物和对新兴污染物的控制研究方面,研究方向主要是高铁酸盐与污染物的反应动力学、反应机理等。文章总结了高铁酸盐分别作为氧化剂、混凝剂和消毒剂时其对有机/无机污染物、藻类、异味、消毒副产物等的去除和控制作用效果,以期为高铁酸盐在水处理领域中的应用提供理论借鉴和技术支撑。

Advances in the Application of Green Water Treatment Agent-Ferrate in Water Treatment

Ferrate is a multi-functional environmental protection water treatment agent in drinking water and wastewater treatment.It is widely used in the field of water treatment owing to the fact that it does not produce toxic and harmful substances and it has the ability of efficient oxidation,coagulation,disinfection and sterilization.In order to comprehensively and systematically analyze the existing research results of ferrate in the field of water treatment,this paper applies the VOSviewer to performing visual quantitative analysis and qualitative analysis on 1038 literatures from CNKI database and Web of Science(WOS)database.The results show that from 1975 to 2019,the research on ferrate in water treatment has gone through three stages:starting,rapid development and relatively stable ones.According to the co-occurrence network diagram of keywords,the research focus at this stage is mainly on the effect of ferrate on the disinfection by-products of drinking water and the emerging research on the control of pollutants.The research direction is mainly on the reaction kinetics and reaction mechanism of ferrate and pollutants.The paper summarizs the removal and control of organic/inorganic pollutants,algae,peculiar smell,disinfection by-pro-ducts,etc.by ferrate as oxidant,coagulant and disinfectant respectively,so as to provide theoretical refe-rence and technical support for the application of ferrate in water treatment.