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Title: Fabrication of aquaporin-based biomimetic membrane for seawater desalination
Authors: Li, Ye
Qi, Saren
Tian, Miao
Widjajanti, Wentalia
Wang, Rong
Keywords: Engineering::Environmental engineering
Issue Date: 2019
Source: Li, Y., Qi, S., Tian, M., Widjajanti, W. & Wang, R. (2019). Fabrication of aquaporin-based biomimetic membrane for seawater desalination. Desalination, 467, 103-112.
Project: IAF-PP 
Journal: Desalination 
Abstract: This study focuses on enhancing the mechanical strength of aquaporin (AQP)-based biomimetic membranes for seawater desalination. AQP incorporated vesicles were embedded into the selective layer of an optimized thin film composite (TFC) membrane. The resultant membrane, denoted as ASW, exhibited a stable water flux around 20 L·m−2·h−1 and 99% NaCl rejection at a constant pressure of 55 bar using 32,000 mg·L−1 NaCl solution as feed in reverse osmosis (RO) measurement. The robustness of the ASW membranes were evaluated. The water flux of ASW membrane was almost 100% enhanced compared with that of AQP-free control TFC membranes. The filtration performance of the ASW membrane was further evaluated by a seven-day desalination test using a real seawater secondary effluent collected from a desalination plant in Singapore as feed. To our best knowledge, our study is the first report on the AQP-incorporated RO membrane applied for seawater desalination. A commercial SW30HR membrane was tested in parallel for comparison. The robust ASW membrane exhibited a nearly 80% higher water flux in comparison to the SW30HR membrane with a comparable overall solute rejection, suggesting the advantage and feasibility of Aquaporin based biomimetic membranes for seawater desalination.
ISSN: 0011-9164
DOI: 10.1016/j.desal.2019.06.005
Rights: © 2019 Elsevier B.V. All rights reserved. This paper was published in Desalination and is made available with permission of Elsevier B.V.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles
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