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

Waste Management
J HashishoI Alameddine

Abstract

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) (3900-7800mg/L), Biochemical Oxygen Demand (BOD5) (∼440-1537mg/L), Total Phosphorus (TP) (∼10-59mg/L), Phosphate (PO4(3)(-)) (5-58mg/L), Total Nitrogen (TN) (1500-5200mg/L), and ammonium (NH4(+)) (1770-4410mg/L). Both membranes achieved comparable BOD (92.2% vs. 93.2%) and TP (79.4% vs. 78.5%) removals. Higher PO4(3)(-) 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%, respectiv...Continue Reading

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Citations

Sep 15, 2017·Environmental Science and Pollution Research International·Petros GkotsisAnastasios Zouboulis
Mar 11, 2017·Environmental Science and Pollution Research International·Gulizar Kurtoglu AkkayaSenem Yazici Guvenc
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Feb 25, 2020·Environmental Technology·Judit Ribera-PiXavier Martínez-Lladó
Jul 5, 2021·Chemosphere·L M L K B LindamullaM Z Othman

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