Hollow fiber vs. flat sheet MBR for the treatment of high strength stabilized landfill leachate

J. Hashisho, M. El-Fadel, M. Al-Hindi, D. Salam, I. Alameddine

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    39 Scopus citations


    The Membrane Bioreactor (MBR) technology is increasingly becoming a prominent process in the treatment of high-strength wastewater such as leachate resulting from the decomposition of waste in landfills. This study presents a performance comparative assessment of flat sheet and hollow fiber membranes in bioreactors for the treatment of relatively stable landfill leachate with the objective of defining guidelines for pilot/full scale plants. For this purpose, a laboratory scale MBR system was constructed and operated to treat a leachate with Chemical Oxygen Demand (COD) (3900–7800 mg/L), Biochemical Oxygen Demand (BOD5) (∼440–1537 mg/L), Total Phosphorus (TP) (∼10–59 mg/L), Phosphate (PO43) (5–58 mg/L), Total Nitrogen (TN) (1500–5200 mg/L), and ammonium (NH4+) (1770–4410 mg/L). Both membranes achieved comparable BOD (92.2% vs. 93.2%) and TP (79.4% vs. 78.5%) removals. Higher PO43 removal efficiency or percentage (87.3% vs. 81.3%) and slightly higher, but not statistically significant, COD removal efficiency were obtained with the hollow fiber membrane (71.4% vs. 68.5%). On the other hand, the flat sheet membrane achieved significantly higher TN and NH4+ removal efficiencies (61.2% vs. 49.4% and 63.4% vs. 47.8%, respectively), which may be attributed to the less frequent addition of NaOCl compared to the hollow fiber system.

    Original languageBritish English
    Pages (from-to)249-256
    Number of pages8
    JournalWaste Management
    StatePublished - 1 Sep 2016


    • Flat sheet
    • Hollow fiber
    • Membrane bioreactor
    • Stabilized leachate


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