海水淡化
电渗析
氧化还原
堆积
电极
纳米技术
材料科学
化学
工艺工程
膜
无机化学
工程类
生物化学
物理化学
有机化学
作者
Gamin Kim,Hyunjin Kim,Minhui Kim,Nayeong Kim,Byeong-Ho Lee,Seonghwan Kim,Xiao Su,Choonsoo Kim
标识
DOI:10.1002/cssc.202500452
摘要
Redox‐mediated electrodialysis (redox‐ED) enhances the economic and energy feasibility of conventional electrodialysis by substituting water splitting and costly metal‐based electrodes with reversible redox reactions and porous carbon electrodes. Despite growing interest, the development of scale‐up strategies for redox‐ED remains limited, delaying its industrial implementation. This study proposes a scale‐up strategy by examining the impact of stacking electrodes and channels on the desalination performance of the system, aiming to enable economically viable desalination. The results show that electrode and channel stacking (up to three stacks) significantly enhances desalination performance, resulting in a 6.8‐fold increase in the salt removal rate, 30% improvement in productivity. These enhancements can be attributed to synergistic effects of electrode and channel stacking, which improve the redox reaction rate by increasing the surface area and enhancing the system capacity by increasing the volumetric flow rate. Techno‐economic analysis underscored the economic viability of the scale‐up strategy proposed in this study, which showed reductions of 18% in capital costs and 32% in operating costs compared with multiple unit cell systems. Overall, incorporating multiple stacks of electrodes and channels offers an effective strategy for scaling up redox‐ED systems with high economic viability, thereby providing a pathway for their industrial utilization.
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