Designing capacitive deionization module for water treatment systems at car washers

It is impossible to effectively use water with a high salt content at car washes. In many places, access to water with a high salt content is almost unlimited but its utilization requires deionization. For this purpose, several methods are used, the main of which are reverse osmosis, electrodialysis...

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Autores principales:	Dmytro Kudin, Grigoriy Taran, Olexiy Bazhynov, Mikhail Kravtsov
Formato:	article
Lenguaje:	EN RU UK
Publicado:	PC Technology Center 2021
Materias:	double electric layer electrochemical impedance capacitive deionization water treatment for car washes Technology (General) T1-995 Industry HD2321-4730.9
Acceso en línea:	https://doaj.org/article/f65bc6bab7274037b76e9b11b8bb4689
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id	oai:doaj.org-article:f65bc6bab7274037b76e9b11b8bb4689
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spelling	oai:doaj.org-article:f65bc6bab7274037b76e9b11b8bb46892021-11-04T14:09:04ZDesigning capacitive deionization module for water treatment systems at car washers1729-37741729-406110.15587/1729-4061.2021.243030https://doaj.org/article/f65bc6bab7274037b76e9b11b8bb46892021-10-01T00:00:00Zhttp://journals.uran.ua/eejet/article/view/243030https://doaj.org/toc/1729-3774https://doaj.org/toc/1729-4061It is impossible to effectively use water with a high salt content at car washes. In many places, access to water with a high salt content is almost unlimited but its utilization requires deionization. For this purpose, several methods are used, the main of which are reverse osmosis, electrodialysis, ion exchange methods, and distillation. However, they have significant drawbacks. Recently, the technology of capacitive deionization of water has been widely used, based on the removal of salt ions from the solution during the charge/discharge of "double" electric layers of carbon materials with a significant active surface (800‒2,000 m2/g). Theoretically, this process should be more energy efficient by using a low potential voltage (1–2 V). This paper considers the interrelation of physical parameters that affect the process of capacitive deionization of water. The dependences of voltage drop on serial internal resistance on different concentrations of sodium chloride and the distance between electrodes for electrodes based on the material SAUT-1S (Belarus) have been investigated. It is shown that the main contribution to the sequential internal resistance is introduced by the resistance of the electrolyte. As the distance between the electrodes increases, the voltage drop on the serial internal resistance increases linearly. A decrease in the concentration of ions leads to a decrease in the conductivity of the solution, which causes an increase in energy consumption and a decrease in the efficiency of sorption. It has been demonstrated that the voltage drop at the serial internal resistance when the voltage on the electrodes is limited, which is set in order to avoid the transition of the electrode charging mode to the electrolysis of water, causes a significant drop in the efficiency of the capacitive deionization processDmytro KudinGrigoriy TaranOlexiy BazhynovMikhail KravtsovPC Technology Centerarticledouble electric layerelectrochemical impedancecapacitive deionizationwater treatment for car washesTechnology (General)T1-995IndustryHD2321-4730.9ENRUUKEastern-European Journal of Enterprise Technologies, Vol 5, Iss 6 (113), Pp 46-53 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	double electric layer electrochemical impedance capacitive deionization water treatment for car washes Technology (General) T1-995 Industry HD2321-4730.9
spellingShingle	double electric layer electrochemical impedance capacitive deionization water treatment for car washes Technology (General) T1-995 Industry HD2321-4730.9 Dmytro Kudin Grigoriy Taran Olexiy Bazhynov Mikhail Kravtsov Designing capacitive deionization module for water treatment systems at car washers
description	It is impossible to effectively use water with a high salt content at car washes. In many places, access to water with a high salt content is almost unlimited but its utilization requires deionization. For this purpose, several methods are used, the main of which are reverse osmosis, electrodialysis, ion exchange methods, and distillation. However, they have significant drawbacks. Recently, the technology of capacitive deionization of water has been widely used, based on the removal of salt ions from the solution during the charge/discharge of "double" electric layers of carbon materials with a significant active surface (800‒2,000 m2/g). Theoretically, this process should be more energy efficient by using a low potential voltage (1–2 V). This paper considers the interrelation of physical parameters that affect the process of capacitive deionization of water. The dependences of voltage drop on serial internal resistance on different concentrations of sodium chloride and the distance between electrodes for electrodes based on the material SAUT-1S (Belarus) have been investigated. It is shown that the main contribution to the sequential internal resistance is introduced by the resistance of the electrolyte. As the distance between the electrodes increases, the voltage drop on the serial internal resistance increases linearly. A decrease in the concentration of ions leads to a decrease in the conductivity of the solution, which causes an increase in energy consumption and a decrease in the efficiency of sorption. It has been demonstrated that the voltage drop at the serial internal resistance when the voltage on the electrodes is limited, which is set in order to avoid the transition of the electrode charging mode to the electrolysis of water, causes a significant drop in the efficiency of the capacitive deionization process
format	article
author	Dmytro Kudin Grigoriy Taran Olexiy Bazhynov Mikhail Kravtsov
author_facet	Dmytro Kudin Grigoriy Taran Olexiy Bazhynov Mikhail Kravtsov
author_sort	Dmytro Kudin
title	Designing capacitive deionization module for water treatment systems at car washers
title_short	Designing capacitive deionization module for water treatment systems at car washers
title_full	Designing capacitive deionization module for water treatment systems at car washers
title_fullStr	Designing capacitive deionization module for water treatment systems at car washers
title_full_unstemmed	Designing capacitive deionization module for water treatment systems at car washers
title_sort	designing capacitive deionization module for water treatment systems at car washers
publisher	PC Technology Center
publishDate	2021
url	https://doaj.org/article/f65bc6bab7274037b76e9b11b8bb4689
work_keys_str_mv	AT dmytrokudin designingcapacitivedeionizationmoduleforwatertreatmentsystemsatcarwashers AT grigoriytaran designingcapacitivedeionizationmoduleforwatertreatmentsystemsatcarwashers AT olexiybazhynov designingcapacitivedeionizationmoduleforwatertreatmentsystemsatcarwashers AT mikhailkravtsov designingcapacitivedeionizationmoduleforwatertreatmentsystemsatcarwashers
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Designing capacitive deionization module for water treatment systems at car washers

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