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    Foulant analysis of hollow fine fiber (HFF) membranes in Red Sea SWRO plants using membrane punch autopsy (MPA)

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    Type
    Article
    Authors
    Green, Troy N.
    Al-Tisan, Ibrahim
    Rahman, Mahmoodur
    Al-Jehani, Yaser
    Alhakami, Almunther
    KAUST Department
    Utilities Operations
    Date
    2017
    Permanent link to this record
    http://hdl.handle.net/10754/625607
    
    Metadata
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    Abstract
    Membrane punch autopsy (MPA) is a procedure for quantitative foulant analysis of hollow fine fiber (HFF) permeators. In the past, quantitative autopsies of membranes were restricted to spiral wound. This procedure was developed at SWCC laboratories and tested on permeators of two commercial Red Sea reverse osmosis plants. For membrane autopsies, stainless steel hollow bore picks were penetrated to membrane cores and fibers extracted for foulant analysis. Quantitative analysis of extracted materials contained inorganic and organic foulants including bacteria. Fourier transform infrared spectroscopy analysis confirmed the presence of organic fouling functional groups and scanning electron microscopy with energy dispersive X-ray spectroscopy in the presence of diatoms and silica most likely not from particulate sand. API analysis revealed the presence of Shewanella and two Vibrio microbial species confirmed by 16S rDNA sequence library. It was observed that fouling content of HFF cellulose triacetate (CTA) membranes were more than 800 times than polyamide spiral wound membranes.
    Citation
    Green TN, Al-Tisan I, Rahman M, Al-Jehani Y, Al-Hakamy A-M (2017) Foulant analysis of hollow fine fiber (HFF) membranes in Red Sea SWRO plants using membrane punch autopsy (MPA). DESALINATION AND WATER TREATMENT 71: 45–51. Available: http://dx.doi.org/10.5004/dwt.2017.20563.
    Publisher
    Desalination Publications
    Journal
    DESALINATION AND WATER TREATMENT
    DOI
    10.5004/dwt.2017.20563
    Additional Links
    http://www.deswater.com/DWT_articles/vol_71_papers/71_2017_45.pdf
    ae974a485f413a2113503eed53cd6c53
    10.5004/dwt.2017.20563
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