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https://doi.org/10.5194/dwes-2020-9
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/dwes-2020-9
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 31 Mar 2020

Submitted as: research article | 31 Mar 2020

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This preprint is currently under review for the journal DWES.

Preparation of TFC Membranes Supported with Elelctrospun Nanofibers for Desalination by Forward Osmosis

Mustafa Al-Furaiji1, Mohammed Kadhom2, Khairi Kalash1, Basma Waisi3, and Noor Albayati4 Mustafa Al-Furaiji et al.
  • 1Environment and Water Directorate, Ministry of Science and Technology, Baghdad, Iraq
  • 2Department of Environment, College of Energy and Environmental Sciences, Alkarkh University of Science, Baghdad, Iraq
  • 3Department of Chemical Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
  • 4Department of Science, College of Basic Education, University of Wasit, Azizia,Wasit, Iraq

Abstract. Forward osmosis (FO) process has been considered as a viable option for water desalination in comparison to the traditional processes like reverse osmosis regarding the energy consumption and economical operation. In this work, polyacrylonitrile (PAN) nanofiber support layer was prepared using electrospinning process as a modern method. Then, an interfacial polymerization reaction between m-phenylenediamine (MPD) and trimesoyl chloride (TMC) was carried out to generate a polyamide selective thin film composite (TFC) membrane on the support layer. The TFC membrane was tested in FO mode (feed solution facing the active layer) using standard methodology and compared to a commercially available cellulose triacetate membrane (CTA). The synthesized membrane showed a high performance in terms of water flux (16 L m−2 h−1) but traded the salt rejection (4 g m−2 h−1) comparing with the commercially CTA membrane (water flux = 13 L m−2 h−1 and salt rejection = 3 g m−2 h−1) at no applied pressure and room temperature. Scanning electron microscopy (SEM), contact angle, mechanical properties, porosity, and performance characterizations were conducted to examine the membrane.

Mustafa Al-Furaiji et al.

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Mustafa Al-Furaiji et al.

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Latest update: 02 Jun 2020
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Short summary
One of the crucial aspects of developing forward osmosis (FO) process is making a suitable membrane. In this work, an FO membrane was synthesized by making a polyamide selective layer on an electrospun nanofibers support layer. The prepared thin film composite (TFC) membrane showed good performance in terms of water flux and salt rejection compared to the commercially available membranes. Also, it showed good properties for FO membranes, namely porosity, hydrophilicity, and mechanical strength.
One of the crucial aspects of developing forward osmosis (FO) process is making a suitable...
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