流动电极电容去离子技术综述：研究进展与未来挑战

doi:10.11949/0438-1157.20211348

摘要/Abstract

摘要：

随着全球能源危机的加剧和碳中和的提出，污水资源化和能源回收成为近年来的研究热点。电容去离子（CDI）这一新型电化学技术，以节能、无污染等优势受到广泛关注。流动电极电容去离子（FCDI）技术是在CDI技术的基础上，结合离子交换膜及流动电极的新型电化学吸附方法，在保持节能的同时，能够实现连续运行从而不间断地产水。本文重点关注FCDI技术的原理、设计、操作模式、考察指标及在环境领域中的应用（包括污水处理、能源回收及其他新兴应用），全面概述了这项水处理技术的研究进展和未来前景。此外，还介绍了FCDI系统中常用性能评价指标，以便不同系统、不同条件之间进行对比。最后，提出了FCDI技术在未来全面应用中的主要挑战。

关键词: 吸附, 电化学, 电吸附技术, 流动电极, 电容去离子, 研究进展, 环境应用, 废水

Abstract:

With the intensification of the global energy crisis and the introduction of carbon neutrality, resources and energy recovery have become research hotspots in the field of wastewater treatment. Capacitive deionization (CDI) has attracted widespread attention for its energy-saving and pollution-free superiorities as a new type of electrochemical technology. By combining one pair of ion exchange membranes and flow electrode based on the basis of traditional CDI device, the flow electrode capacitive deionization(FCDI) achieves continuous operation for uninterrupted water production. This review provides a comprehensive overview of the research progress and future prospects of FCDI, focuses on the topics of principles, cell design (including cell architecture, electrode materials, separator options, and FCDI configurations), operation modes (ICC, SCC, OC, and SC) as well as applications in the environmental field (including sewage treatment, energy recovery and other emerging applications). In addition, this article also introduces the commonly used performance metrics of FCDI for comparison between different systems and operating conditions. Finally, the feasibility and main challenges of FCDI technology in future applications are introduced.

Key words: adsorption, electrochemistry, electro-sorption technology, flow-electrode, capacitive deionization, research progress, environmental application, wastewater

中图分类号:

TQ 028.8

王祺, 房阔, 贺聪慧, 王凯军. 流动电极电容去离子技术综述：研究进展与未来挑战[J]. 化工学报, 2022, 73(3): 975-989.

Qi WANG, Kuo FANG, Conghui HE, Kaijun WANG. Recent development and future challenges of flow-electrode capacitive deionization[J]. CIESC Journal, 2022, 73(3): 975-989.

图/表 11

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