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A platform for research: civil engineering, architecture and urbanism
Surface Modification of Reverse Osmosis Membranes for Enhanced Boron Removal and Fouling Resistance
https://orcid.org/0000-0003-3855-1062
The trade-off between selectivity and permeability as well as membrane fouling are major obstacles of seawater reverse osmosis (SWRO) membranes. Surface grafting of a functional layer on a thin-film composite (TFC) membrane is one of the most promising and versatile strategies to address the above problems. In this work, 3-amino-1,2-propanediol (APD) and tobramycin (TOB) were grafted on the commercial RO membrane SW30XLE surface to improve the boron removal rate and fouling resistance. The optimized TFC-TOB2/APD10 membrane exhibited a 33.4% increase in permeate flux, while it maintained a high NaCl rejection of 98.0%. Compared with the SW30XLE membrane, the boron rejection of the TFC-TOB2/APD10 membrane enhanced from 84.2 to 92.2%. Besides, the obtained membrane exhibited excellent antifouling properties, including organic fouling resistance, scaling control, and bactericidal capacity. Our work paved a new way for fabrication of high-performance RO membranes with enhanced permselectivity and antifouling properties, which are greatly desired in SWRO desalination.
This study not only develops a boron removal and fouling resistant membrane but also provides a sustainable approach for seawater desalination.
Surface Modification of Reverse Osmosis Membranes for Enhanced Boron Removal and Fouling Resistance
https://orcid.org/0000-0003-3855-1062
The trade-off between selectivity and permeability as well as membrane fouling are major obstacles of seawater reverse osmosis (SWRO) membranes. Surface grafting of a functional layer on a thin-film composite (TFC) membrane is one of the most promising and versatile strategies to address the above problems. In this work, 3-amino-1,2-propanediol (APD) and tobramycin (TOB) were grafted on the commercial RO membrane SW30XLE surface to improve the boron removal rate and fouling resistance. The optimized TFC-TOB2/APD10 membrane exhibited a 33.4% increase in permeate flux, while it maintained a high NaCl rejection of 98.0%. Compared with the SW30XLE membrane, the boron rejection of the TFC-TOB2/APD10 membrane enhanced from 84.2 to 92.2%. Besides, the obtained membrane exhibited excellent antifouling properties, including organic fouling resistance, scaling control, and bactericidal capacity. Our work paved a new way for fabrication of high-performance RO membranes with enhanced permselectivity and antifouling properties, which are greatly desired in SWRO desalination.
This study not only develops a boron removal and fouling resistant membrane but also provides a sustainable approach for seawater desalination.
Surface Modification of Reverse Osmosis Membranes for Enhanced Boron Removal and Fouling Resistance
https://orcid.org/0000-0003-3855-1062
The trade-off between selectivity and permeability as well as membrane fouling are major obstacles of seawater reverse osmosis (SWRO) membranes. Surface grafting of a functional layer on a thin-film composite (TFC) membrane is one of the most promising and versatile strategies to address the above problems. In this work, 3-amino-1,2-propanediol (APD) and tobramycin (TOB) were grafted on the commercial RO membrane SW30XLE surface to improve the boron removal rate and fouling resistance. The optimized TFC-TOB2/APD10 membrane exhibited a 33.4% increase in permeate flux, while it maintained a high NaCl rejection of 98.0%. Compared with the SW30XLE membrane, the boron rejection of the TFC-TOB2/APD10 membrane enhanced from 84.2 to 92.2%. Besides, the obtained membrane exhibited excellent antifouling properties, including organic fouling resistance, scaling control, and bactericidal capacity. Our work paved a new way for fabrication of high-performance RO membranes with enhanced permselectivity and antifouling properties, which are greatly desired in SWRO desalination.
This study not only develops a boron removal and fouling resistant membrane but also provides a sustainable approach for seawater desalination.
Surface Modification of Reverse Osmosis Membranes for Enhanced Boron Removal and Fouling Resistance
Li, Jinmei (author) / Wang, Dong (author) / Wang, Yang (author) / Gao, Baoyu (author) / Wang, Zhining (author)
ACS ES&T Water ; 1 ; 2284-2292
2021-10-08
Article (Journal)
Electronic Resource
English
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