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Type
ArticleAuthors
Shi, Meixia
Printsypar, Galina

Phuoc, Duong

Calo, Victor M.

Iliev, Oleg

Nunes, Suzana Pereira

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Earth Science and Engineering Program
Environmental Science and Engineering Program
Nanostructured Polymeric Membrane Lab
Numerical Porous Media SRI Center (NumPor)
Office of the VP
Physical Science and Engineering (PSE) Division
Technology Transfer
Water Desalination and Reuse Research Center (WDRC)
Date
2016-06-06Online Publication Date
2016-06-06Print Publication Date
2016-10Permanent link to this record
http://hdl.handle.net/10754/613001
Metadata
Show full item recordAbstract
We propose a multi-scale simulation approach to model forward osmosis (FO) processes using substrates with layered homogeneous morphology. This approach accounts not only for FO setup but also for detailed microstructure of the substrate using the digitally reconstructed morphology. We fabricate a highly porous block copolymer membrane, which has not been explored for FO heretofore, and use it as the substrate for interfacial polymerization. The substrate has three sub-layers, namely a top layer, a sponge-like middle layer, and a nonwoven fabric layer. We generate a digital microstructure for each layer, and verify them with experimental measurements. The permeability and effective diffusivity of each layer are computed based on their virtual microstructures and used for FO operation in cross-flow setups at the macro scale. The proposed simulation approach predicts accurately the FO experimental data.Citation
3D Morphology Design for Forward Osmosis 2016 Journal of Membrane ScienceSponsors
The authors thank Ms. Poornima Madhavan and Dr. Haizhou Yu for their valuable advice on the block copolymer membrane preparation. The research reported in this publication was sponsored by King Abdullah University of Science and Technology (KAUST).Publisher
Elsevier BVJournal
Journal of Membrane ScienceAdditional Links
http://linkinghub.elsevier.com/retrieve/pii/S0376738816305208ae974a485f413a2113503eed53cd6c53
10.1016/j.memsci.2016.05.061