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http://dx.doi.org/10.11001/jksww.2021.35.4.293

A study on the TDS removal characteristics in aqueous solution using MCDI module for application of water treatment process  

Oh, Changseog (School of Civil and Environmental Engineering, University of Science and Technology)
An, Jusuk (Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology)
Oh, Hyun-Je (School of Civil and Environmental Engineering, University of Science and Technology)
Publication Information
Journal of Korean Society of Water and Wastewater / v.35, no.4, 2021 , pp. 293-300 More about this Journal
Abstract
Recently, various researches have been studied, such as water treatment, water reuse, and seawater desalination using CDI (Capacitive deionization) technology. Also, applications like MCDI (Membrane capacitive deionization), FCDI (Flow-capacitive deionization), and hybrid CDI have been actively studied. This study tried to investigate various factors by an experiment on the TDS (Total dissolved solids) removal characteristics using MCDI module in aqueous solution. As a result of the TDS concentration of feed water from 500 to 2,000 mg/L, the MCDI cell broke through faster when the higher TDS concentration. In the case of TDS concentration according to the various flow rate, 100 mL/min was stable. In addition, there was no significant difference in the desorption efficiency according to the TDS concentration and method of backwash water used for desorption. As a result of using concentrated water for desorption, stable adsorption efficiency was shown. In the case of the MCDI module, the ions of the bulk solution which is escaped from the MCDI cell to the spacer during the desorption process are more important than the concentration of ions during desorption. Therefore, the MCDI process can get a larger amount of treated water than the CDI process. Also, prepare a plan that can be operated insensitive to the TDS concentration of backwash water for desorption.
Keywords
Adsorption; Desorption; Desalination; MCDI; TDS;
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1 Kang, J.I., Kim, T.Y., Jo, K.S. and Yoon, J.Y., (2014). Comparison of salt adsorption capacity and energy consumption between constant current and constant voltage operation in capacitive deionization, Desalination, 352, 52-57.   DOI
2 Oren, Y. (2008). Capacitive deionization (CDI) for desalination and water treatment-past, present and future (a review), Desalination, 228, 10-29.   DOI
3 Song, Y.J., Yun, W.S. and Rhim, J.W. (2017). Studies of performance and enlarged capacity through multi-stages stacked module in membrane capacitive deionization process, Memb. J., 27(5), 449-457.   DOI
4 Suss, M.E., Porada, S., Biesheuvel, P.M., Yoon, J. and Presser, V. (2015). Water desalination via capacitive deionization: what is it and what can we expect from it?, Energy Environ. Sci., 8, 2296.   DOI
5 Jande, Y.A.C. and Kim, W.S. (2013). Desalination Using Capacitive Deionization at Constant Current, Desalination, 329, 29-34.   DOI
6 Yao, Q. and Tang, H. (2017). Effect of Desorption Methods on Electrode Regeneration Performance of Capacitive Deionization, J. Environ. Eng., 143(9), 04017047.   DOI
7 Yun, W.S., Cheong, S.I. and Rhim, J.W. (2018). Effect of ion exchange capacity on salt removal rate in membrane capacitive deionization process., Memb. J., 28(5), 332-339.   DOI
8 Zhao, R., Biesheuvel, P.M. and van der Wal, A. (2012). Energy consumption and constant current operation in membrane capacitive deionization., Energy Environ. Sci., 5, 9520-9527.   DOI
9 Choi, J.H. (2014). Comparison of constant voltage(CV) and constant current(CC) operation in the membrane capacitive deionisation process., Desalin. Water Treat., 56, 921-928.   DOI
10 Zhao, X., Wei, H., Zhao, H., Wang, Y., and Tang, N. (2020). Electrode materials for capacitive deionization: A review, J. Electroanal. Chem., 873, 114416.   DOI
11 Ahmad, F., Khan, S.J., Jamal, Y., Kamran, H., Ahsan, A., Ahmad, M. and Khan, A. (2015). Desalination of brackish water using capacitive deionization (CDI) technology, Desalination, Water Treat., 57, 17.
12 Biesheuvel, P.M. and van der Wal, A. (2010). Membrane capacitive deionization, J. Membr. Sci., 346, 256-262.   DOI
13 Biesheuvel, P.M., Zhao, R., Porada, S. and van der Wal, A. (2011). Theory of membrane capacitive deionization including the effect of the electrode pore space, J. Colloid Interface Sci., 360, 239-248.   DOI
14 Choi, J.H. and Kim, H.K. (2015). Comparison of Selective Removal of Nitrate Ion in Constant Voltage and Constant Current Operation in Capacitive Deionization, Korean Chem. Eng. Res., 53(3), 269-275.   DOI
15 Porada, S., Zhao, R., van der Wal, A., Presser, V. and Biesheuvel, P.M. (2013). Review on the science and technology of water desalination by capacitive deionization, Prog. Mater. Sci., 58, 1388-1442.   DOI