期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 29, 期 46, 页码 70532-70541出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-022-20827-5
关键词
Permanganate; Phenol; Manganese dioxide; Kinetics; EPS
资金
- National Natural Science Foundation of China [51979137, 51779079, 41931292]
This study investigates the mechanism by which extracellular polymeric substances (EPS) influence the oxidation of phenol by permanganate (Mn (VII)). The results show that EPS significantly enhances the oxidation efficiency of Mn (VII) for phenol by promoting the formation and stability of EPS-MnO2 colloids.
This study provides a new thinking for the efficient utilization of permanganate (Mn (VII)) in eutrophic water treatment. Eutrophic water contained a large amount of extracellular polymeric substances (EPS) with reduction and chelation; this study used phenol as typical organic matter and cyanobacteria EPS as a representative EPS to explore the mechanism by which EPS influences the oxidation of phenol by Mn(VII) at pH 5.0-9.0. The results showed that under the condition of pH 5.0-7.0, adding 0.2-10 mg/L EPS to the Mn(VII) system could effectively improve the oxidation efficiency of Mn(VII) for phenol. EPS promoted the continuous formation and stability of in situ EPS-MnO2 colloids and significantly enhanced the oxidation of Mn(VII). EPS also combined with phenol and increased the electron cloud density to promote the oxidation of phenol by Mn(VII).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据