期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 4, 期 8, 页码 4174-4180出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.6b00689
关键词
Flow electrode; Capacitive deionization; FCDI; Stack; Scale up
资金
- National Research Council of Science & Technology (NST), Republic of Korea [B4-2452] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Flow electrodes have recently been studied for use in capacitive deionization applications because of their continuous and high desalting efficiency. The production capacity of desalinated water in the flow-electrode capacitive deionization (FCDI) system is limited compared to infinite ion capacity of the flow electrodes due to restrictions in the flow rate of the influent/effluent. Therefore, we designed and fabricated an FCDI stack with five unit cells in order to increase the production capacity of desalinated water. Through inlet pressure measurements of the flow electrodes in the FCDI stack, we confirmed that the flow electrodes were uniformly segmented from the manifold formed in the FCDI stack into the flow channels of each unit cell. We also confirmed that there was no pressure increase at the flow electrode in the flow channel caused by an increase in the number of unit cells in the FCDI stack. Also, the FCDI stack showed a similar desalting efficiency when compared to that of the FCDI unit cell. On the basis of the results, we verified that the FCDI stack can be successfully used to scale up the desalinated water production capacity of the FCDI system.
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