Electrochemical filtration for drinking water purification: A review on membrane materials, mechanisms and roles.

Autor: Qi, Yuying1,2,3 (AUTHOR), Li, Donghao1,2,3 (AUTHOR), Zhang, Shixuan1,2,3 (AUTHOR), Li, Fengxiang1,2,3 (AUTHOR) lifx@nankai.edu.cn, Hua, Tao1,2,3 (AUTHOR) huatao@nankai.edu.cn
Předmět:
Zdroj: Journal of Environmental Sciences (Elsevier). Jul2024, Vol. 141, p102-128. 27p.
Abstrakt: • Overview on the application of electrochemical filtration in drinking water purification. • The materials and properties of membrane substrate and catalyst were summarized. • Carbon-based electrochemical membrane is suitable for drinking water purification. • Discussion on the relationship between the working electrode and water purification effect. • Flow-through electrochemical processes facilitate the reduction of energy consumption. Electrochemical filtration can not only enrich low concentrations of pollutants but also produce reactive oxygen species to interact with toxic pollutants with the assistance of a power supply, making it an effective strategy for drinking water purification. In addition, the application of electrochemical filtration facilitates the reduction of pretreatment procedures and the use of chemicals, which has outstanding potential for maximizing process simplicity and reducing operating costs, enabling the production of safe drinking water in smaller installations. In recent years, the research on electrochemical filtration has gradually increased, but there has been a lack of attention on its application in the removal of low concentrations of pollutants from low conductivity water. In this review, membrane substrates and electrocatalysts used to improve the performance of electrochemical membranes are briefly summarized. Meanwhile, the application prospects of emerging single-atom catalysts in electrochemical filtration are also presented. Thereafter, several electrochemical advanced oxidation processes coupled with membrane filtration are described, and the related working mechanisms and their advantages and shortcomings used in drinking water purification are illustrated. Finally, the roles of electrochemical filtration in drinking water purification are presented, and the main problems and future perspectives of electrochemical filtration in the removal of low concentration pollutants are discussed. [Display omitted] [ABSTRACT FROM AUTHOR]
Databáze: GreenFILE