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    3D Morphology Design for Forward Osmosis

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    Type
    Article
    Authors
    Shi, Meixia cc
    Printsypar, Galina cc
    Phuoc, Duong cc
    Calo, Victor M. cc
    Iliev, Oleg cc
    Nunes, Suzana Pereira cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Computer, 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
    2016-06-06
    Online Publication Date
    2016-06-06
    Print Publication Date
    2016-10
    Permanent link to this record
    http://hdl.handle.net/10754/613001
    
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    Abstract
    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 Science
    Sponsors
    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 BV
    Journal
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2016.05.061
    Additional Links
    http://linkinghub.elsevier.com/retrieve/pii/S0376738816305208
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.memsci.2016.05.061
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC); Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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