| 强化高锰酸钾氧化体系中自由基的产生与利用研究进展 |
| |
| 引用本文： | 张静,张宏龙,王定祥,崔福义.强化高锰酸钾氧化体系中自由基的产生与利用研究进展[J].环境化学,2021,40(2):487-496. |
| |
| 作者姓名： | 张静 张宏龙 王定祥 崔福义 |
| |
| 作者单位： | 重庆大学环境与生态学院,重庆,400045;重庆大学三峡库区生态环境教育部重点实验室,重庆,400045;重庆大学环境与生态学院,重庆,400045 |
| |
| 基金项目： | 国家重点研发计划(2019YFD1100101);国家自然科学基金(51878095)资助。 |
| |
| 摘 要： | 高锰酸钾在水处理行业中的应用已趋于成熟,但与臭氧、芬顿及其他高级氧化技术相比,高锰酸钾与难降解有机污染物的反应速率较低,需要与其它方法联用来强化自身的氧化能力.近年来随着对强化高锰酸钾氧化机理研究的不断深入,人们发现该体系中产生的自由基对有机污染物的降解有显著的促进作用.为此本文综述了强化高锰酸钾氧化体系中各类无机与有机自由基的产生路径和促进有机污染物降解的机制,提出了后续的研究展望,以期为强化高锰酸钾氧化技术的进一步推广提供理论依据.
|
| 关 键 词： | 高锰酸钾 氧化技术 有机污染物 自由基 机制 |
Generation and utilization of radicals during enhanced permanganate oxidation:A review |
| |
| ZHANG Jing,ZHANG Honglong,WANG Dingxiang,CUI Fuyi.Generation and utilization of radicals during enhanced permanganate oxidation:A review[J].Environmental Chemistry,2021,40(2):487-496. |
| |
| Authors: | ZHANG Jing ZHANG Honglong WANG Dingxiang CUI Fuyi |
| |
| Institution: | (College of Environment and Ecology,Chongqing,400045,China;Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment(Chongqing University),Ministry of Education,Chongqing,400045,China) |
| |
| Abstract: | Permanganate(Mn(Ⅶ))has been widely applied as an oxidant in water treatment plants.However,compared with ozone,Fenton and other advanced oxidation processes,the reaction rate of refractory organic pollutants with Mn(Ⅶ)is relatively low.Therefore,further studies on the strategies to enhance the performance of Mn(Ⅶ)are valuable.Enhanced Mn(Ⅶ)oxidation by coupling with other oxidants or processes were evaluated in recent years.The in situ formed radicals responsible for accelerated organic contaminants degradation were observed.Therefore,the generation and utilization inorganic and organic radicals in enhanced Mn(Ⅶ)oxidation system were summarized and discussed,and the prospects about enhanced permanganate oxidation were proposed in this review.This review is expected to shed some light on the application of enhanced Mn(Ⅶ)oxidation technology in large-scale water treatment. |
| |
| Keywords: | permanganate oxidation technology organic contaminants radicals mechanisms |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
