• 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 LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Graphene-coated hollow fiber membrane as the cathode in anaerobic electrochemical membrane bioreactors – Effect of configuration and applied voltage on performance and membrane fouling

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    acs2Eest2E5b02833.pdf
    Size:
    7.622Mb
    Format:
    PDF
    Description:
    Accepted Manuscript
    Download
    Type
    Article
    Authors
    Werner, Craig M.
    Katuri, Krishna
    Rao, Hari Ananda cc
    Chen, Wei
    Lai, Zhiping cc
    Logan, Bruce E.
    Amy, Gary L.
    Saikaly, Pascal cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Biological and Environmental Sciences and Engineering (BESE) Division
    Chemical Engineering Program
    Environmental Biotechnology Research Group
    Environmental Science and Engineering Program
    Office of the VP
    Physical Science and Engineering (PSE) Division
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2016-01-06
    Online Publication Date
    2016-01-06
    Print Publication Date
    2016-04-19
    Permanent link to this record
    http://hdl.handle.net/10754/592615
    
    Metadata
    Show full item record
    Abstract
    Electrically conductive, graphene-coated hollow-fiber porous membranes were used as cathodes in anaerobic electrochemical membrane bioreactors (AnEMBRs) operated at different applied voltages (0.7 V and 0.9 V) using a new rectangular reactor configuration, compared to a previous tubular design (0.7 V). The onset of biofouling was delayed and minimized in rectangular reactors operated at 0.9 V, compared to those at 0.7 V due to higher rates of hydrogen production. Maximum transmembrane pressures for the rectangular reactor were only 0.10 bar (0.7 V) or 0.05 bar (0.9 V) after 56 days of operation, compared to 0.46 bar (0.7 V) for the tubular reactor after 52 days. The thickness of the membrane biofouling layer was approximately 0.4 µm for rectangular reactors and 4 µm for the tubular reactor. Higher permeate quality (TSS = 0.05 mg/L) was achieved in the rectangular AnEMBR than the tubular AnEMBR (TSS = 17 mg/L), likely due to higher current densities that minimized the accumulation of cells in suspension. These results show that the new rectangular reactor design, which had increased rates of hydrogen production, successfully delayed the onset of cathode biofouling and improved reactor performance.
    Citation
    Graphene-coated hollow fiber membrane as the cathode in anaerobic electrochemical membrane bioreactors – Effect of configuration and applied voltage on performance and membrane fouling 2015 Environmental Science & Technology
    Publisher
    American Chemical Society (ACS)
    Journal
    Environmental Science & Technology
    DOI
    10.1021/acs.est.5b02833
    PubMed ID
    26691927
    Additional Links
    http://pubs.acs.org/doi/10.1021/acs.est.5b02833
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.est.5b02833
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Advanced Membranes and Porous Materials Research Center; Environmental Science and Engineering Program; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Water Desalination and Reuse Research Center (WDRC)

    entitlement

    Related articles

    • A novel anaerobic electrochemical membrane bioreactor (AnEMBR) with conductive hollow-fiber membrane for treatment of low-organic strength solutions.
    • Authors: Katuri KP, Werner CM, Jimenez-Sandoval RJ, Chen W, Jeon S, Logan BE, Lai Z, Amy GL, Saikaly PE
    • Issue date: 2014 Nov 4
    • Fouling-resistant biofilter of an anaerobic electrochemical membrane reactor.
    • Authors: Yu Q, Zhang Y
    • Issue date: 2019 Oct 24
    • Dual-Function Conductive Copper Hollow Fibers for Microfiltration and Anti-biofouling in Electrochemical Membrane Bioreactors.
    • Authors: Liu D, Chen X, Bian B, Lai Z, Situ Y
    • Issue date: 2018
    • Novel Anaerobic Electrochemical Membrane Bioreactor with a CNTs Hollow Fiber Membrane Cathode to Mitigate Membrane Fouling and Enhance Energy Recovery.
    • Authors: Yang Y, Qiao S, Jin R, Zhou J, Quan X
    • Issue date: 2019 Jan 15
    • Anoxic gas recirculation system for fouling control in anoxic membrane reactor.
    • Authors: Lee H, Lee D, Hong S, Yun GH, Kim S, Hwang JK, Lee W, Yun Z
    • Issue date: 2014 Jun 1
    DSpace software copyright © 2002-2023  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    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.