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    Evaluation of membrane fouling mitigation strategies in an algal membrane photobioreactor (AMPBR) treating secondary wastewater effluent

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    Thumbnail
    Name:
    Manuscript_FINAL.pdf
    Size:
    1002.Kb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2021-11-20
    Download
    Type
    Article
    Authors
    Fortunato, Luca cc
    Felipe Lamprea, Andres
    Leiknes, TorOve cc
    KAUST Department
    Water Desalination and Reuse Research Center (WDRC)
    Water Desalination and Reuse Center (WDRC), Division of Biological & Environmental Science & Engineering (BESE), 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
    Environmental Science and Engineering Program
    Biological and Environmental Sciences and Engineering (BESE) Division
    Date
    2019-11-20
    Online Publication Date
    2019-11-20
    Print Publication Date
    2020-03
    Embargo End Date
    2021-11-20
    Permanent link to this record
    http://hdl.handle.net/10754/660420
    
    Metadata
    Show full item record
    Abstract
    Microalgae-based advanced wastewater treatment has gained momentum due to the possibility of recovering nutrients for the production of fertilizers, biofuels and fine chemicals from microalgal biomass. The objective of this study is to evaluate the effect of different fouling control strategies on the development of Chlorella vulgaris in a membrane photobioreactor (AMPMBR) treating a secondary wastewater effluent. The experimental results showed a decrease in the fouling rate (bar/hours) of 50% for backwash and relaxation and 60% for nitrogen bubble scouring. Additionally, in-situ non-destructive real time monitoring was employed to visualize and assess the change in morphology of the algae formed on the membrane surface. The use of fouling mitigation led to substantial changes in the biomass morphologies impacting the performance of the AMPMBR. The lowest biomass deposition (5–10 µm) was observed when nitrogen bubble scouring was employed, while the application of relaxation led to the thickest (180 µm), most heterogeneous and porous structure. The use of backwash led to a partial temporary biomass detachment from the membrane surface. This study, provided a better understanding of the impact of fouling mitigation strategies on the biomass formed on the membrane of AMPMBR.
    Citation
    Fortunato, L., Felipe Lamprea, A., & Leiknes, T. (2019). Evaluation of membrane fouling mitigation strategies in an algal membrane photobioreactor (AMPBR) treating secondary wastewater effluent. Science of The Total Environment, 134548. doi:10.1016/j.scitotenv.2019.134548
    Sponsors
    This study was supported by funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The graphical abstract was created by Heno Hwang, scientific illustrator at King Abdullah University of Science and Technology (KAUST), Saudi Arabia.
    Publisher
    Elsevier BV
    Journal
    Science of The Total Environment
    DOI
    10.1016/j.scitotenv.2019.134548
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0048969719345395
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.scitotenv.2019.134548
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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