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Title: Highly efficient forward osmosis based on porous membranes : applications and implications
Authors: Qi, Saren
Li, Ye
Zhao, Yang
Li, Weiyi
Tang, Chuyang Y.
Keywords: DRNTU::Engineering::Environmental engineering::Water treatment
Issue Date: 2015
Source: Qi, S., Li, Y., Zhao, Y., Li, W., & Tang, C. Y. (2015). Highly efficient forward osmosis based on porous membranes : applications and implications. Environmental Science & Technology, 49(7), 4690-4695.
Series/Report no.: Environmental science & technology
Abstract: For the first time, forward osmosis (FO) was performed using a porous membrane with an ultrafiltration (UF)-like rejection layer and its feasibility for high performance FO filtration was demonstrated. Compared to traditional FO membranes with dense rejection layers, the UF-like FO membrane was 2 orders of magnitude more permeable. This gave rise to respectable FO water flux even at ultralow osmotic driving force, for example, 7.6 L/m2.h at an osmotic pressure of merely 0.11 bar (achieved by using a 0.1% poly(sodium 4-styrene-sulfonate) draw solution). The membrane was applied to oil/water separation, and a highly stable FO water flux was achieved. The adoption of porous FO membranes opens a door to many new opportunities, with potential applications ranging from wastewater treatment, valuable product recovery, and biomedical applications. The potential applications and implications of porous FO membranes are addressed in this paper.
ISSN: 0013-936X
DOI: 10.1021/es504164w
Rights: © 2015 American Chemical Society (ACS). This is the author created version of a work that has been peer reviewed and accepted for publication by Environmental Science & Technology, American Chemical Society (ACS). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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