Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 476, Issue -, Pages 469-474Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2014.11.055
Keywords
Biomimetic; Aquaporin; Forward osmosis; Trace organic; Pesticide
Categories
Funding
- Otto Monsted Foundation
- Danish Ministry of Science, Technology and Innovation at KU Leuven, Belgium
- Danish National Advanced Technology Foundation [97-2012-4]
Ask authors/readers for more resources
The use of forward osmosis for the removal of trace organics from water has recently attracted considerable attention as an alternative to traditional pressure driven membrane filtration. However, the existing forward osmosis membranes have been found to be ineffective at rejecting small neutral organic pollutants, which limits the applicability of the forward osmosis process. In this study a newly developed biomimetic membrane was tested for the removal of three selected trace organics that can be considered as a bench marking test for a membrane's ability to reject small neutral organic pollutants in aqueous solution. The performance of this membrane was compared with a standard cellulose acetate forward osmosis membrane. The aquaporin membrane was found to have rejection values above 97% for all three trace organics, which was significantly higher than the cellulose acetate membrane. This difference is caused by differences in the transport mechanisms. For the cellulose acetate membrane rejection is controlled by steric hindrance, which results in a size dependent rejection of the trace organics, whereas rejection by the aquaporin membrane is controlled by diffusion of the trace organics. Furthermore, the aquaporin membrane was found to have a higher pure water flux. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available