资源回收
脱水
高锰酸钾
废水
污水处理
废物管理
污水污泥
环境科学
人体净化
危险废物
化学
环境工程
工程类
岩土工程
有机化学
作者
Yufen Wang,Kaixin Zheng,Haixiao Guo,Lixin Tian,Yanying He,Xiaomin Wang,Tingting Zhu,Peizhe Sun,Yiwen Liu
标识
DOI:10.1016/j.cej.2022.139529
摘要
The wastewater pollution with various contaminants exposure and increased sludge production from municipal wastewater treatment plants (WWTPs) are the two challenges confronted by human beings. Therefore, the pollution control and sludge treatment have gained growing attentions. Potassium permanganate (KMnO4), as a green and non-toxic oxidant, has been largely employed in wastewater and sludge treatments, including pollutants removal, decrement of hazardous gas footprint, and improvement of sludge dewatering and resource recovery ascribed to its strong oxidability and excellent properties, which provides solutions for wastewater decontamination, risk mitigation and sludge recycling. The recent studies of KMnO4-based advanced oxidation processes (AOPs) in terms of wastewater and sludge treatment are comprehensively outlined in this review. Particularly, methods of enhancing KMnO4 oxidation are summarized, and the application and relevant mechanisms of KMnO4-based AOPs in improving contaminants removal, sludge dewatering and resource recovery (i.e., short-chain fatty acids and methane) are illuminated and discussed. Finally, the knowledge gaps and new opportunities of KMnO4-based AOPs in wastewater and sludge fields are prospected. The review can promote an in-depth understanding of KMnO4-based processes and provide a theoretical framework for KMnO4 application in wastewater and sludge managements.
科研通智能强力驱动
Strongly Powered by AbleSci AI