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Exploring dynamic membrane as an alternative for conventional membrane for the treatment of old landfill leachate

TitoloExploring dynamic membrane as an alternative for conventional membrane for the treatment of old landfill leachate
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2019
AutoriSaleem, M., Masut E., Spagni A., and Lavagnolo M.C.
RivistaJournal of Environmental Management
Parole chiavearticle, biofouling, Bioreactor, concentration (composition), concentration (parameter), denitrification, exploration, filtration, fouling, landfill, landfill leachate, leachate, Membrane, Nitrification, Nitrogen, operations technology, performance assessment, pollutant removal, reactor operation, Waste treatment

This study compares the performance of a lab-scale pre-anoxic and post-aerobic submerged dynamic membrane bioreactor (DMBR) with similar studies on conventional membrane bioreactors (MBRs) for the treatment of old landfill leachate (LFL) while presenting a strategy to achieve stable DMBR operation. The results suggested that DMBR performed similar, or in some cases, better than MBRs. Like conventional MBRs treating LFL, DMBR can also accommodate large variations in operating parameters including influent feed composition and loading rates and thus, it can guarantee long term stable bioreactor operation (total nitrogen removal up to 98%) with acceptable effluent quality (Turbidity < 10 NTU). The results also demonstrated that gradual increment in influent LFL concentration was found to be effective for a stable DMBR operation however, it significantly deteriorated dynamic membrane (DM) filtration performance (p < 10E-7), resulting in higher fouling rate and deteriorated effluent quality. Nonetheless, poor DM performance and higher fouling rate were effectively controlled by using lower mesh porosity (52 μm instead of 200 μm) and increase in DM effective filtration area. © 2019 Elsevier Ltd


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Citation KeySaleem2019658