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Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane

Feed spacers improve mixing and mass transfer in membrane modules. However, they also lead to foulant deposition in the vicinity of the spacer surface. In this paper, two hydrophilic monomers, namely, acrylic acid (AA) and 2-hydroxyethyl methacrylate (HEMA), are respectively coated on the surface of...

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Main Authors: Tan, J. X., Foo, K., Lau, W. J., Chua, S. F., Mohd Hasbi, Ab Rahim, A. L., Ahmad, Liang, Y. Y.
Format: Article
Language:English
English
Published: John Wiley & Sons 2024
Subjects:
Q Science (General)
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/42163/1/Hydrophilic%20modification%20of%20feed%20spacer%20and%20its%20impacts_ABST.pdf
http://umpir.ump.edu.my/id/eprint/42163/2/APJ_3134Hydrophilic%20modification%20of%20feed%20spacer%20and%20its%20impacts.pdf
http://umpir.ump.edu.my/id/eprint/42163/
https://doi.org/10.1002/apj.3134
https://doi.org/10.1002/apj.3134
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spelling my.ump.umpir.421632024-08-05T04:36:11Z http://umpir.ump.edu.my/id/eprint/42163/ Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane Tan, J. X. Foo, K. Lau, W. J. Chua, S. F. Mohd Hasbi, Ab Rahim A. L., Ahmad Liang, Y. Y. Q Science (General) TP Chemical technology Feed spacers improve mixing and mass transfer in membrane modules. However, they also lead to foulant deposition in the vicinity of the spacer surface. In this paper, two hydrophilic monomers, namely, acrylic acid (AA) and 2-hydroxyethyl methacrylate (HEMA), are respectively coated on the surface of a commercial feed spacer via a plasma-enhanced chemical vapor deposition (PECVD) method. The resulting modified spacers are then evaluated alongside with a reverse osmosis (RO) membrane for its solute rejection, water permeability, and antifouling properties. Results show that the surface hydrophilicity of feed spacers has been enhanced upon the AA and HEMA deposition. During filtration test, the HEMA-modified spacer demonstrates higher flux recovery rate (94.17%) and salt rejection (95.78%) for the RO membrane. In contrast, the membrane with the unmodified spacer only shows 89.44% and 92.46%, respectively. Additionally, the membrane with the HEMA-modified spacer has a thinner fouling layer (200 nm) compared to the unmodified spacer (700 nm). The HEMA-coated spacer outperforms all the tested spacers, demonstrating that feed spacer modification with a hydrophilic monomer via the PECVD method can effectively reduce membrane fouling. John Wiley & Sons 2024-08-04 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42163/1/Hydrophilic%20modification%20of%20feed%20spacer%20and%20its%20impacts_ABST.pdf pdf en http://umpir.ump.edu.my/id/eprint/42163/2/APJ_3134Hydrophilic%20modification%20of%20feed%20spacer%20and%20its%20impacts.pdf Tan, J. X. and Foo, K. and Lau, W. J. and Chua, S. F. and Mohd Hasbi, Ab Rahim and A. L., Ahmad and Liang, Y. Y. (2024) Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane. Asia-Pacific Journal of Chemical Engineering, e3134. pp. 1-11. ISSN 1932-2135. (Published) https://doi.org/10.1002/apj.3134 https://doi.org/10.1002/apj.3134
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic Q Science (General)
TP Chemical technology
spellingShingle Q Science (General)
TP Chemical technology
Tan, J. X.
Foo, K.
Lau, W. J.
Chua, S. F.
Mohd Hasbi, Ab Rahim
A. L., Ahmad
Liang, Y. Y.
Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane
description Feed spacers improve mixing and mass transfer in membrane modules. However, they also lead to foulant deposition in the vicinity of the spacer surface. In this paper, two hydrophilic monomers, namely, acrylic acid (AA) and 2-hydroxyethyl methacrylate (HEMA), are respectively coated on the surface of a commercial feed spacer via a plasma-enhanced chemical vapor deposition (PECVD) method. The resulting modified spacers are then evaluated alongside with a reverse osmosis (RO) membrane for its solute rejection, water permeability, and antifouling properties. Results show that the surface hydrophilicity of feed spacers has been enhanced upon the AA and HEMA deposition. During filtration test, the HEMA-modified spacer demonstrates higher flux recovery rate (94.17%) and salt rejection (95.78%) for the RO membrane. In contrast, the membrane with the unmodified spacer only shows 89.44% and 92.46%, respectively. Additionally, the membrane with the HEMA-modified spacer has a thinner fouling layer (200 nm) compared to the unmodified spacer (700 nm). The HEMA-coated spacer outperforms all the tested spacers, demonstrating that feed spacer modification with a hydrophilic monomer via the PECVD method can effectively reduce membrane fouling.
format Article
author Tan, J. X.
Foo, K.
Lau, W. J.
Chua, S. F.
Mohd Hasbi, Ab Rahim
A. L., Ahmad
Liang, Y. Y.
author_facet Tan, J. X.
Foo, K.
Lau, W. J.
Chua, S. F.
Mohd Hasbi, Ab Rahim
A. L., Ahmad
Liang, Y. Y.
author_sort Tan, J. X.
title Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane
title_short Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane
title_full Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane
title_fullStr Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane
title_full_unstemmed Hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane
title_sort hydrophilic modification of feed spacer and its impacts on antifouling performance of reverse osmosis membrane
publisher John Wiley & Sons
publishDate 2024
url http://umpir.ump.edu.my/id/eprint/42163/1/Hydrophilic%20modification%20of%20feed%20spacer%20and%20its%20impacts_ABST.pdf
http://umpir.ump.edu.my/id/eprint/42163/2/APJ_3134Hydrophilic%20modification%20of%20feed%20spacer%20and%20its%20impacts.pdf
http://umpir.ump.edu.my/id/eprint/42163/
https://doi.org/10.1002/apj.3134
https://doi.org/10.1002/apj.3134
_version_ 1822924568025628672
score 13.235362

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