期刊
CARBOHYDRATE POLYMERS
卷 155, 期 -, 页码 28-39出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.08.058
关键词
Poly (vinyl alcohol); Gum Arabic; Pluronic F127; Reverse osmosis membrane; Biofouling; Chlorine resistance
资金
- King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
A novel crosslinked Poly (vinyl alcohol) (PVA) reverse osmosis (RO) thin film membrane conjugated with Gum Arabic (GA) with superb performance and features was synthesized for water desalination. RO membrane desalination parameters, such as hydrophilicity, surface roughness, water permeability, salt rejection, Chlorine resistance and biofouling resistance were evaluated using a dead end RO filtration unit. The incorporation of Pluronic F127 and the conjugation of Gum Arabic improved the overall RO performance of the membranes. This study has shown that the membrane PVA-GA-5 that contains 0.9 wt% Gum Arabic provided excellent permeation, salt rejection, Chlorine and biofouling resistance and mechanical strength. The most remarkable result to arise from this research is that the overall RO performance enhancement has been achieved while utilizing PVA/Gum Arabic as a separation layer without the use of a substrate, which eliminates negative effects associated with the use of a substrate like internal concentration polarization. (C) 2016 Elsevier Ltd. All rights reserved.
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