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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2019.29.5.292

Improvement of The Desalination Performance through The Split Electrodes in The Capacitive Deionization Process  

Kim, Yong Bin (Department of Advanced Materials and Chemical Engineering, Hannam University)
Rhim, Ji Won (Department of Advanced Materials and Chemical Engineering, Hannam University)
Publication Information
Membrane Journal / v.29, no.5, 2019 , pp. 292-298 More about this Journal
Abstract
The purpose of this study was to improve the desalination performance by using split electrodes in the capacitive desalination process. The experiment was carried out by measuring the desalination efficiency of the NaCl aqueous solution according to the partitioning of the electrode at 20 mL/min flow rate, 1.2 V, 3 min adsorption conditions, and -1 V, 1 min desorption conditions. The desalination efficiency for the non-divided electrodes with a surface area of $146cm^2$ reached 40% while the divided electrode with a surface area of $133cm^2$ showed a desalination efficiency of 57%. The desalination efficiency of the same split electrode was 49% at 2 cm divided interval and 57% at 1cm divided interval. The desalination efficiency of the split electrode was higher than that of the normal CDI and narrower divided intervals increased the performance.
Keywords
capacitive deionization (CDI); desalination efficiency; flow rate; divided electrodes;
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Times Cited By KSCI : 3  (Citation Analysis)
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