Application of capacitive deionization in heavy metal ions removal and recovery: A review

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL Separation and Purification Technology Pub Date : 2025-02-09 DOI:10.1016/j.seppur.2025.132027

Haolan Shi, Mengjiao Xu, Luxiang Wang, Qingtao Ma, Mengying Zhao, Qiang Li, Zixiao Xu, Lichang Ji, Fei Yu, Jie Ma

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引用次数: 0

Abstract

Environmental problems caused by heavy metal-containing wastewater pollution have seriously affected the functioning of the ecosystem and the production and life of human beings, and the solution of heavy metal (HM) water pollution has become an important issue. Meanwhile, due to the increasing shortage of HM resources, the effective extraction and recovery of valuable HM resources from industrial wastewater has also attracted extensive attention from researchers. The advantages of capacitive deionization (CDI) include high efficiency, being environmentally friendly, and low energy consumption. In recent years, CDI has been increasingly used in water treatment, and its research in HM separation and recovery has been increasing year by year. Considering that there is no comprehensive and in-depth review of this significant topic. Therefore, our review critically assesses the research progress of CDI in HM removal and recovery. We provide a brief introduction to HMs and CDI, respectively, classify the mechanisms for selective separation of HM ions in CDI, summarize the relevant applications, analyze the existing problems, and anticipate their prospective future applications. Finally, the obstacles and potential of employing CDI for the selective separation and recovery of heavy metal ions are examined. The findings of this review will facilitate the advancement of CDI in HM separation and recovery and promote in-depth research on CDI in the field of ion-selective removal.

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.