Separation of Cd(II) from aqueous solutions by a new consecutive process consisting of supported liquid membrane and electrodialysis

Supported liquid membrane process usually is used for recovering or enrichment of valuable metals in the industrial wastewater. But, even if the metals in the wastewater was separated with high chemical selectivity, it cannot be enough concentrated since separation performance of supported liquid membrane (SLM) process is limited by concentration gradient between feed solution and stripping solution. If metal concentration in the stripping solution to be enough low, transport of metal through membrane can be accomplishment constantly. Therefore, Electrodialysis (ED) has been placed after SLM process and the stripping solution of SLM was used as the feed solution for the ED process. Transport of ions in the solutions is successfully performed by ED process. Thus, the metal concentration in the stripping solution does not rise as to stop ion transport. Besides, valuable metals easily are concentrated by ED process for re-use. In this study, effects of operation parameters like initial Cd(II) concentration, HCl concentration in the feed solution of SLM and applied voltage are investigated on separation efficiency, flux and permeability of the both processes. As the feed solution concentration increased, all performance values has increased. When initial concentration of 100 mg/L is used, separation performances (SP) are 55% and 70%, for SLM and consecutive process, respectively. The best HCl concentration in the feed solution of SLM has determined as 2 M, in this conditions SP are 64% and 72%, for SLM and consecutive process, respectively. With increased of applied voltage on ED process, SP of the consecutive process has been raised from 72% to 83%. According to the obtained experimental data, consecutive process has better separation performance than SLM. When the separation performances of both processes were compared for the same operating conditions, it was determined higher the separation efficiency, permeability and flux values of the consecutive process, 8%, 9% and %10.6, respectively. Consequently, the use of the consecutive process increases the performance efficiency of both processes. The consecutive process studied has quite a good chemical separation efficiency, and enrichment capability. Moreover, this process requires few water and energy. © 2019, Korean Electrochemical Society. All rights reserved.

Dergi Adı Journal of Electrochemical Science and Technology
Dergi Cilt Bilgisi 10
Dergi Sayısı 1
Sayfalar 14 - 21
Yayın Yılı 2019
Eser Adı
[dc.title]
Separation of Cd(II) from aqueous solutions by a new consecutive process consisting of supported liquid membrane and electrodialysis
Yazar
[dc.contributor.author]
Altın, Süreyya
Yazar
[dc.contributor.author]
Altın, Ahmet
Yayın Yılı
[dc.date.issued]
2019
Yayıncı
[dc.publisher]
Korean Electrochemical Society
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Supported liquid membrane process usually is used for recovering or enrichment of valuable metals in the industrial wastewater. But, even if the metals in the wastewater was separated with high chemical selectivity, it cannot be enough concentrated since separation performance of supported liquid membrane (SLM) process is limited by concentration gradient between feed solution and stripping solution. If metal concentration in the stripping solution to be enough low, transport of metal through membrane can be accomplishment constantly. Therefore, Electrodialysis (ED) has been placed after SLM process and the stripping solution of SLM was used as the feed solution for the ED process. Transport of ions in the solutions is successfully performed by ED process. Thus, the metal concentration in the stripping solution does not rise as to stop ion transport. Besides, valuable metals easily are concentrated by ED process for re-use. In this study, effects of operation parameters like initial Cd(II) concentration, HCl concentration in the feed solution of SLM and applied voltage are investigated on separation efficiency, flux and permeability of the both processes. As the feed solution concentration increased, all performance values has increased. When initial concentration of 100 mg/L is used, separation performances (SP) are 55% and 70%, for SLM and consecutive process, respectively. The best HCl concentration in the feed solution of SLM has determined as 2 M, in this conditions SP are 64% and 72%, for SLM and consecutive process, respectively. With increased of applied voltage on ED process, SP of the consecutive process has been raised from 72% to 83%. According to the obtained experimental data, consecutive process has better separation performance than SLM. When the separation performances of both processes were compared for the same operating conditions, it was determined higher the separation efficiency, permeability and flux values of the consecutive process, 8%, 9% and %10.6, respectively. Consequently, the use of the consecutive process increases the performance efficiency of both processes. The consecutive process studied has quite a good chemical separation efficiency, and enrichment capability. Moreover, this process requires few water and energy. © 2019, Korean Electrochemical Society. All rights reserved.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Cadmium
Konu Başlıkları
[dc.subject]
Consecutive process
Konu Başlıkları
[dc.subject]
Electrodialysis
Konu Başlıkları
[dc.subject]
Metal separation
Konu Başlıkları
[dc.subject]
Supported liquid membrane
Künye
[dc.identifier.citation]
Altin, S. ve Altin, A. (2019). Separation of cd(Ii) from aqueous solutions by a new consecutive process consisting of supported liquid membrane and electrodialysis. Journal of Electrochemical Science and Technology, 10(1), 14-21. doi:10.5229/JECST.2019.10.1.14
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
2093-8551
Sponsor YAYINCI
[dc.description.sponsorship]
2014-77047330-07
Sponsor YAYINCI
[dc.description.sponsorship]
This research was financially supported by the Research Fund of Bulent Ecevit University (Project code: 2014-77047330-07).
İlk Sayfa Sayısı
[dc.identifier.startpage]
14
Son Sayfa Sayısı
[dc.identifier.endpage]
21
Dergi Adı
[dc.relation.journal]
Journal of Electrochemical Science and Technology
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
10
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.5229/JECST.2019.10.1.14
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/7491
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
19
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
06 Şubat 2024 20:55
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Tıklayınız
process solution concentration consecutive separation stripping efficiency performance increased processes metals respectively membrane conditions performances liquid transport determined values enrichment permeability chemical wastewater concentrated voltage applied valuable initial enough raised Supported According obtained capability Moreover
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