Forward osmosis membranes: the significant roles of selective layer
Forward osmosis membranes: the significant roles of selective layer
Forward osmosis (FO) is a promising separation technology to overcome the challenges of pressure-driven membrane processes. The FO process has demonstrated profound advantages in treating feeds with high salinity and viscosity in applications such as brine treatment and food processing. This review discusses the advancement of FO membranes and the key membrane properties that are important in real applications. The membrane substrates have been the focus of the majority of FO membrane studies to reduce internal concentration polarization. However, the separation layer is critical in selecting the suitable FO membranes as the feed solute rejection and draw solute back diffusion are important considerations in designing large-scale FO processes. In this review, emphasis is placed on developing FO membrane selective layers with a high selectivity. The effects of porous FO substrates in synthesizing high-performance polyamide selective layer and strategies to overcome the substrate constraints are discussed. The role of interlayer in selective layer synthesis and the benefits of nanomaterial incorporation will also be reviewed.
forward osmosis, interfacial polymerization, polyamide, selective layer
Tian, Miao
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Ma, Tao
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Goh, Kunli
cb134696-3f8c-4972-8346-cc45f15ef582
Pei, Zhiqiang
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Chong, Jeng Yi
2f9ead94-86f2-4e20-9e67-75f10759555b
Wang, Yi Ning
f8fe301c-7dba-4509-bc23-773bbacd825d
29 September 2022
Tian, Miao
a5d00d30-a0d4-4b3f-b974-631049c1ff56
Ma, Tao
b9ee8412-2abc-418e-a546-cf594782d84e
Goh, Kunli
cb134696-3f8c-4972-8346-cc45f15ef582
Pei, Zhiqiang
3bf9057f-9dac-4552-807d-500f373837bf
Chong, Jeng Yi
2f9ead94-86f2-4e20-9e67-75f10759555b
Wang, Yi Ning
f8fe301c-7dba-4509-bc23-773bbacd825d
Tian, Miao, Ma, Tao, Goh, Kunli, Pei, Zhiqiang, Chong, Jeng Yi and Wang, Yi Ning
(2022)
Forward osmosis membranes: the significant roles of selective layer.
Membranes, 12 (10), [955].
(doi:10.3390/membranes12100955).
Abstract
Forward osmosis (FO) is a promising separation technology to overcome the challenges of pressure-driven membrane processes. The FO process has demonstrated profound advantages in treating feeds with high salinity and viscosity in applications such as brine treatment and food processing. This review discusses the advancement of FO membranes and the key membrane properties that are important in real applications. The membrane substrates have been the focus of the majority of FO membrane studies to reduce internal concentration polarization. However, the separation layer is critical in selecting the suitable FO membranes as the feed solute rejection and draw solute back diffusion are important considerations in designing large-scale FO processes. In this review, emphasis is placed on developing FO membrane selective layers with a high selectivity. The effects of porous FO substrates in synthesizing high-performance polyamide selective layer and strategies to overcome the substrate constraints are discussed. The role of interlayer in selective layer synthesis and the benefits of nanomaterial incorporation will also be reviewed.
Text
membranes-12-00955
- Version of Record
More information
Accepted/In Press date: 22 September 2022
Published date: 29 September 2022
Additional Information:
Funding Information:
This research was funded by National Natural Science Foundation of China, grant number 5210010; Natural Science Foundation of Shaanxi Province, grant number 2021JQ-108; and Northwestern Polytechnical University.
Keywords:
forward osmosis, interfacial polymerization, polyamide, selective layer
Identifiers
Local EPrints ID: 486389
URI: http://eprints.soton.ac.uk/id/eprint/486389
ISSN: 2077-0375
PURE UUID: 495635df-475d-4d5f-8b1b-e83fb64739c2
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Date deposited: 19 Jan 2024 17:31
Last modified: 18 Mar 2024 04:18
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Contributors
Author:
Miao Tian
Author:
Tao Ma
Author:
Kunli Goh
Author:
Zhiqiang Pei
Author:
Jeng Yi Chong
Author:
Yi Ning Wang
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