• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics

    Scaling sets the limits of large scale membrane distillation modules for the treatment of high salinity feeds

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Scaling_scaling sets.pdf
    Size:
    2.310Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2022-12-01
    Download
    Type
    Article
    Authors
    Soukane, Sofiane cc
    Elcik, Harun
    Alpatova, Alla cc
    Orfi, Jamel
    Ali, Emad
    AlAnsary, Hany
    Ghaffour, NorEddine cc
    KAUST Department
    King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science & Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia.
    Water Desalination and Reuse Research Center (WDRC)
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Science and Engineering Program
    KAUST Grant Number
    REP/1/3805-01-01
    Date
    2020-12
    Embargo End Date
    2022-12-01
    Submitted Date
    2020-07-23
    Permanent link to this record
    http://hdl.handle.net/10754/666433
    
    Metadata
    Show full item record
    Abstract
    In this study, the dynamics of scaled-up membrane distillation (MD) modules are tackled for the treatment of highly saline desalination brines. Physical phenomena occurring inside the feed chamber during process scale-up including temperature evolution, species distribution and scaling likeliness were explored using a multicomponent computational fluid dynamics (CFD) model that couples momentum, heat, ions transport and water permeation across the membrane. The model was calibrated with experiments carried out on a lab-scale direct contact MD system fed with concentrated seawater with a salinity of 61 g/L. The complete fall-off of the permeate flux occurred when the salinity reached 170 g/L from 61 g/L, caused by a scaling mostly due to calcium sulfate (gypsum). In order to predict scaling occurrence, an in-house code is embedded in the CFD model to solve Pitzer’s equation at every cell of the domain, enabling the calculation of species activity coefficients, the feed ionic strength, species effective concentration and degree of saturation of the solution with respect to gypsum. Results unveil that during the MD process of brines, the degree of saturation increases considerably in membrane vicinity while the average outlet salinity remains close to that at the inlet due to the relatively high flow rate. Extrapolation to longer modules revealed that an increase in the feed temperature increases the scaling likeliness while flow rates, especially in the high range, did not significantly impact scaling formation. The drop in performance from lab-scale module to a scaled-up size is shown for 1 m long generic modules with and without the use of antiscalants.
    Citation
    Soukane, S., Elcik, H., Alpatova, A., Orfi, J., Ali, E., AlAnsary, H., & Ghaffour, N. (2020). Scaling sets the limits of large scale membrane distillation modules for the treatment of high salinity feeds. Journal of Cleaner Production, 125555. doi:10.1016/j.jclepro.2020.125555
    Sponsors
    The research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia, through the KAUST-KSU (King Saud University) initiative, Grant # REP/1/3805-01-01 (KAUST) and RG-1440-103 (KSU). The authors acknowledge the help, assistance and support from the Water Desalination and Reuse Center (WDRC) and KAUST staff.
    Publisher
    Elsevier BV
    Journal
    Journal of Cleaner Production
    DOI
    10.1016/j.jclepro.2020.125555
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0959652620356018
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.jclepro.2020.125555
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

    entitlement

     
    DSpace software copyright © 2002-2021  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.