Using a microheterogeneous model to assess the applicability of ion-exchange membranes in the process of reverse electrodialysis
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Using a microheterogeneous model to assess the applicability of ion-exchange membranes in the process of reverse electrodialysis
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| Автор |
Davidov, D. V.
Nosova, E. N. Loza, S. A. Achoh, A. R. Korzhov, A. N. Melnikov, S. S. |
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| Тематика |
REVERSE ELECTRODIALYSIS
ION-EXCHANGE MEMBRANE CONDUCTIVITY DIFFUSION PERMEABILITY MICROHETEROGENEOUS MODEL |
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| Описание |
Received: 30.03.2021. Revised: 28.04.2021. Accepted: 30.04.2021. Available online: 30.04.2021.
This paper shows the possibility of using a microheterogeneous model to describe the properties of ion-exchange membranes and calculate the characteristics of a reverse electrodialyzer from the data obtained. We studied the properties of eight samples of heterogeneous cation exchange membranes (two samples of each type of membrane). The samples differed in the year of issue and storage conditions. It is shown that for heterogeneous ion-exchange membranes MK-40 and MA-41, the samples' properties can differ significantly. The counterions transport numbers calculated within the framework of the microheterogeneous model for Ralex membranes differ insignificantly. The counterion transport number in 1 mol/L sodium chloride solution is 0.96 for Ralex CM and 0.98 ± 0.01 for Ralex AMH. For the MK-40 membrane, the transport number in the same solution is 0.94 ± 0.04, and for the MA-41 membrane, it is 0.85 ± 0.1. The possibility of calculating the transport numbers and predicting the open-circuit voltage based on simple physicochemical measurements allows selecting the best membrane pairs for the reverse electrodialysis process. Comparison of the open-circuit potential value calculated using the obtained transfer numbers with experimental data showed that in the case of using Ralex membranes, the difference between the experimental and calculated values is 2%. The calculated value of the open circuit potential was 0.19 V/membrane pair or 1.69 V for the investigated reverse electrodialyzer with nine pair chambers. The research was carried out with the financial support of the Kuban science Foundation in the framework of the scientific project № IFR-20.1/110. |
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| Дата |
2021-08-09T12:06:17Z
2021-08-09T12:06:17Z 2021-07 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Using a microheterogeneous model to assess the applicability of ion-exchange membranes in the process of reverse electrodialysis / D. V. Davidov, E. N. Nosova, S. A. Loza, A. R. Achoh, A. N. Korzhov, S. S. Melnikov // Chimica Techno Acta. — 2021. — Vol. 8, No. 2. — № 20218205.
2411-1414 http://elar.urfu.ru/handle/10995/100704 https://www.elibrary.ru/item.asp?id=46407567 10.15826/chimtech.2021.8.2.05 |
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| Язык |
en
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| Связанные ресурсы |
Chimica Techno Acta. 2021. Vol. 8. № 2
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| Формат |
application/pdf
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| Издатель |
Ural Federal University
Уральский федеральный университет |
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