Analysis of challenges and problems in the application of electrodeionisation for demineralized water production
Файли
Дата
2025
Науковий керівник
Назва журналу
Номер ISSN
Назва тому
Видавець
КПІ ім. Ігоря Сікорського ; ТОВ «Українська водна спілка»
Анотація
The article presents an analysis of the challenges and problems that limit the widespread use of theelectrodeionization method for water desalination. Nevertheless, this technology has alreadyproven itself in the pharmaceutical industry, in the production of microelectronics and at thermalpower facilities. But it also has prospects for wider application, for example, in the chemical andfood industries, thermal power engineering, biotechnology, hydrogen production, etc. Incombination with preliminary water treatment using the method of double stage reverse osmosis,has the potential to completely replace the use of cation and anion exchange filters for waterdesalination. The aim of this work is to review and analyze the fundamental principles andpractical aspects of the application of electrodeionization, the design and operation ofelectrodeionization units, and possible approaches to improving their efficiency in order to obtain ahigh degree of water desalination. To this end, technological approaches to improving the design ofelectrodeionizers and the possibility of modifying ion-exchange resins in order to reduce energyconsumption, increase selectivity and productivity, etc. are considered in detail. The mainparameters of the electrodeionization process modes are determined, and the impact of modifyingion-exchange materials with water dissociation catalysts and varying the ratio of cation- andanion-exchange resins on the efficiency of the modules is assessed. The influence of the abovefactors on productivity, selectivity, energy consumption, continuous operation time ofelectrodeionization units, degree of ion exchange resin regeneration, degree of water purification,reduction of fouling of ion exchange membranes and degree of electrode corrosion has beenanalyzed.
Опис
Ключові слова
concentration channel, desalination, electrical resistance of water, electrodeionization, ion-exchange membrane, modification, spacer, електродеіонізація, електричний опір води, знесолення, іонообмінна мембрана, канал концентрування, модифікування, спейсер
Бібліографічний опис
Simdianov, D. Analysis of challenges and problems in the application of electrodeionisation for demineralized water production / Dmytro Simdianov, Olena Yanushevska, Tetiana Dontsova // Вода і водоочисні технології. Науково-технічні вісті. – 2025. – № 1(41). – С. 8-31. – Бібліогр.: 58 назв.