Hollow Fiber Membranes

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Polymeric Membranes".

Deadline for manuscript submissions: closed (15 September 2023) | Viewed by 1824

Special Issue Editors


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Guest Editor
Membrane Technology Research Unit, Chemical Engineering Department, University of Technology, Baghdad, Iraq
Interests: membrane engineering; membrane fabrication; membrane formation; water desalination; forward osmosis; membrane distillation; wastewater treatment; ultrafiltration; microfiltration and nanofiltration membranes
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Guest Editor
The State Company of Energy Production-Middle Region, Ministry of Electricity, Baghdad 10013, Iraq
Interests: membrane fabrication; membrane characterization; desalination; water treatment; nanomaterials fabrication and characterization

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Guest Editor
NYUAD Water Research Centre, New York University Abu Dhabi Campus, Abu Dhabi P.O. Box 129188, United Arab Emirates
Interests: membrane technologies; adsorption; advanced oxidation process; resources recovery

Special Issue Information

Dear Colleagues,

Membrane technology is the main method to solve the problem of massive water shortage in many countries. Most of the research found in the literature focuses on the use of flat sheet membranes due to the ease of preparation and design of this membrane configuration. However, this type of membrane suffers from low productivity and high cost in comparison with the hollow-fiber membranes. Therefore, in this Issue, we focused on attracting research that uses hollow fiber membranes in water treatment or desalination and wastewater treatment. Special attention is paid to new methods for improving the physicochemical properties and filtration performance of hollow membranes taking into account the trade-off between water production and separation efficiency. Work on the optimization of system designs and operation is also welcomed.

From the studies found in the literature, there is a lack of data on actual wastewater and most experimental works were performed on a simulated solution or mixtures. Therefore, in this Special Issue, we welcome new experimental data concerning the future development in the preparation and design of polymeric membranes for applications of real wastewater and seawater samples. We are also interested in receiving review papers providing novel methods for the hollow-fiber fabrication of different membrane separation processes i.e., forward osmosis (FO), membrane distillation (MD), ultrafiltration, and nanofiltration membranes.

Prof. Dr. Qusay Alsalhy
Dr. Saif Al Aani
Dr. Raed A. Al-Juboori
Guest Editors

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Keywords

  • hollow-fiber membranes
  • membrane fabrication
  • membrane modification
  • ultrafiltration
  • forward osmosis
  • membrane distillation
  • actual wastewater treatment
  • seawater desalination
  • produced water pretreatment and desalination

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Published Papers (1 paper)

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Research

25 pages, 6681 KiB  
Article
Two-Dimensional Theoretical Analysis and Experimental Study of Mass Transfer in a Hollow-Fiber Dialysis Module Coupled with Ultrafiltration Operations
by Chii-Dong Ho, Jr-Wei Tu, Yih-Hang Chen and Thiam Leng Chew
Membranes 2023, 13(8), 702; https://doi.org/10.3390/membranes13080702 - 27 Jul 2023
Viewed by 1259
Abstract
This research theoretically and experimentally develops a hollow-fiber dialysis module coupled with ultrafiltration operations by introducing a trans-membrane pressure during the membrane dialysis process, which can be applied to the waste metabolic end products in the human body for improving the dialysis efficiency. [...] Read more.
This research theoretically and experimentally develops a hollow-fiber dialysis module coupled with ultrafiltration operations by introducing a trans-membrane pressure during the membrane dialysis process, which can be applied to the waste metabolic end products in the human body for improving the dialysis efficiency. The solutes were transported by both diffusion and convection from the concentration driving-force gradient between retentate and dialysate phases across the membrane, compared to the traditional dialysis processes by diffusion only. A two-dimensional modeling of such a dialysis-and-ultrafiltration system in the hollow-fiber dialysis module was formulated and solved using the stream function coupled with the perturbation method to obtain the velocity distributions of retentate and dialysate phases, respectively. The purpose of the present work is to investigate the effect of ultrafiltration on the dialysis rate in the hollow-fiber dialyzer with ultrafiltration operations. A highest level of dialysis rate improvement up to about seven times (say 674.65% under Va=20 mL/min) was found in the module with ultrafiltration rate Vw=10 mL/min and membrane sieving coefficient θ=1, compared to that in the system without operating ultrafiltration. Considerable dialysis rate improvements on mass transfer were obtained by implementing a hollow-fiber dialysis-and-ultrafiltration system, instead of using the hollow-fiber dialyzer without ultrafiltration operation. The experimental runs were carried out under the same operating conditions for the hollow-fiber dialyzers of the two experimental runs with and without ultrafiltration operations for comparisons. A very reasonable prediction by the proposed mathematical model was observed. Full article
(This article belongs to the Special Issue Hollow Fiber Membranes)
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