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    Performance of a novel baffled osmotic membrane bioreactor-microfiltration hybrid system under continuous operation for simultaneous nutrient removal and mitigation of brine discharge

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    Type
    Article
    Authors
    Pathak, Nirenkumar
    Chekli, Laura
    Wang, Jin
    Kim, Youngjin cc
    Phuntsho, Sherub
    Li, Sheng cc
    Ghaffour, NorEddine cc
    Leiknes, TorOve cc
    Shon, Hokyong
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Science and Engineering Program
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2017-03-14
    Online Publication Date
    2017-03-14
    Print Publication Date
    2017-09
    Permanent link to this record
    http://hdl.handle.net/10754/623043
    
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    Abstract
    The present study investigated the performance of an integrated osmotic and microfiltration membrane bioreactor system for wastewater treatment employing baffles in the reactor. Thus, this reactor design enables both aerobic and anoxic processes in an attempt to reduce the process footprint and energy costs associated with continuous aeration. The process performance was evaluated in terms of water flux, salinity build up in the bioreactor, organic and nutrient removal and microbial activity using synthetic reverse osmosis (RO) brine as draw solution (DS). The incorporation of MF membrane was effective in maintaining a reasonable salinity level (612-1434 mg/L) in the reactor which resulted in a much lower flux decline (i.e. 11.48 to 6.98 LMH) as compared to previous studies. The stable operation of the osmotic membrane bioreactor–forward osmosis (OMBR-FO) process resulted in an effective removal of both organic matter (97.84%) and nutrient (phosphate 87.36% and total nitrogen 94.28%), respectively.
    Citation
    Pathak N, Chekli L, Wang J, Kim Y, Phuntsho S, et al. (2017) Performance of a novel baffled osmotic membrane bioreactor-microfiltration hybrid system under continuous operation for simultaneous nutrient removal and mitigation of brine discharge. Bioresource Technology. Available: http://dx.doi.org/10.1016/j.biortech.2017.03.069.
    Sponsors
    The research reported in this publication was supported by funding from the SEED program of King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The help, assistance and support of the Water Desalination and Reuse Center (WDRC) staff is greatly appreciated.
    Publisher
    Elsevier BV
    Journal
    Bioresource Technology
    DOI
    10.1016/j.biortech.2017.03.069
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0960852417303401
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.biortech.2017.03.069
    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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