A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes
In this study, the effects of polymer concentration on the performances and fine structural details of asymmetric nanofiltration (NF) membranes were investigated. Based on the well known models/equations on pore flow, solution diffusion and extended Nernst–Planck, the experimental data (electrolyt...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Science B.V., Amsterdam
2007
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| Online Access: | http://eprints.utm.my/816/1/AFIsmail2007_Atheoreticalapproachonmembranecharacterizationthededuction.pdf |
| _version_ | 1796853145270222848 |
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| author | Hassan, A. R. Ali, Nora'aini Abdull, Norhidayah Ismail, A. F. |
| author_facet | Hassan, A. R. Ali, Nora'aini Abdull, Norhidayah Ismail, A. F. |
| author_sort | Hassan, A. R. |
| collection | ePrints |
| description | In this study, the effects of polymer concentration on the performances and fine structural details of asymmetric nanofiltration (NF) membranes were investigated. Based on the well known models/equations on pore flow, solution diffusion and extended Nernst–Planck, the experimental data (electrolyte/ions rejection) has been modeled. Spielger– Kedem equations were used to determine the membranes parameters such as reflection coefficient, solute permeability and steric hindrance effects. Employing steric hindrance pore model (SHP) model and Teorell–Meyer Sievers (TMS) model, important membranes structural details in terms of effective pore radius, effective charge density and ratio of effective membrane thickness to membrane porosity have been measured. From the modeling results, it was found that the polymer concentration can influence the membrane performances by varying of structural details. Through the observation using scanning electron microscopy (SEM), it was shown that the produced membranes exhibited a finger-like structure. According to the results obtained from the modeling, these membranes are in range of the commercially available NF membranes. |
| first_indexed | 2024-03-05T17:55:15Z |
| format | Article |
| id | utm.eprints-816 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T17:55:15Z |
| publishDate | 2007 |
| publisher | Elsevier Science B.V., Amsterdam |
| record_format | dspace |
| spelling | utm.eprints-8162017-10-19T06:38:24Z http://eprints.utm.my/816/ A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes Hassan, A. R. Ali, Nora'aini Abdull, Norhidayah Ismail, A. F. TP Chemical technology In this study, the effects of polymer concentration on the performances and fine structural details of asymmetric nanofiltration (NF) membranes were investigated. Based on the well known models/equations on pore flow, solution diffusion and extended Nernst–Planck, the experimental data (electrolyte/ions rejection) has been modeled. Spielger– Kedem equations were used to determine the membranes parameters such as reflection coefficient, solute permeability and steric hindrance effects. Employing steric hindrance pore model (SHP) model and Teorell–Meyer Sievers (TMS) model, important membranes structural details in terms of effective pore radius, effective charge density and ratio of effective membrane thickness to membrane porosity have been measured. From the modeling results, it was found that the polymer concentration can influence the membrane performances by varying of structural details. Through the observation using scanning electron microscopy (SEM), it was shown that the produced membranes exhibited a finger-like structure. According to the results obtained from the modeling, these membranes are in range of the commercially available NF membranes. Elsevier Science B.V., Amsterdam 2007-02 Article PeerReviewed application/pdf en http://eprints.utm.my/816/1/AFIsmail2007_Atheoreticalapproachonmembranecharacterizationthededuction.pdf Hassan, A. R. and Ali, Nora'aini and Abdull, Norhidayah and Ismail, A. F. (2007) A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes. Desalination, 206 . pp. 107-126. ISSN 0011-9164 http://dx.doi.org/10.1016/j.desal.2006.06.008 10.1016/j.desal.2006.06.008 |
| spellingShingle | TP Chemical technology Hassan, A. R. Ali, Nora'aini Abdull, Norhidayah Ismail, A. F. A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes |
| title | A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes |
| title_full | A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes |
| title_fullStr | A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes |
| title_full_unstemmed | A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes |
| title_short | A theoretical approach on membrane characterization: the deduction of fine structural details of asymmetric nanofiltration membranes |
| title_sort | theoretical approach on membrane characterization the deduction of fine structural details of asymmetric nanofiltration membranes |
| topic | TP Chemical technology |
| url | http://eprints.utm.my/816/1/AFIsmail2007_Atheoreticalapproachonmembranecharacterizationthededuction.pdf |
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