Assessment of dynamic membrane filtration for biological treatment of old landfill leachate

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dc.contributor.authorSaleem, Mubbshir
dc.contributor.authorSpagni, Alessandro
dc.contributor.authorAlibardi, Luca
dc.contributor.authorBertucco, Alberto
dc.contributor.authorLavagnolo, Maria Cristina
dc.date.accessioned2018-03-14T12:10:32Z
dc.date.available2018-03-14T12:10:32Z
dc.date.issued2018-02-22
dc.description.abstractThis study investigated the behaviour of dynamic membrane (DM) filtration for the treatment of stabilised landfill leachate in a bench-scale pre-anoxic and aerobic submerged dynamic membrane bioreactor (DMBR). Four meshes with different openings (10, 52, 85 and 200 μm) were tested to support the development of DM. Differences were observed among the meshes in supporting the development of the cake layer constituting the DM. The treatment of landfill leachate had an impact on sludge characteristics resulting in deteriorated filtration performance of the DM. Effluent turbidity was often higher than 100 NTU for larger mesh pore size (85 and 200 μm). Low effluent turbidity was achieved with meshes with 10 and 52 μm (13 ± 2 and 26 ± 4 NTU, respectively) although at membrane fluxes lower than 10 L m− 2 h−1. The bioreactor exhibited a moderate organics removal of 50–60% and an ammonia oxidation between 80 and 90%. Incomplete nitrification was observed due to increased concentrations of free ammonia and free nitrous acid, with nitrite effluent concentrations up to 1062 mgNO2--N L−1. Due to the large presence of refractory organic matter in landfill leachate, denitrification was limited resulting in a total nitrogen removal of approximately 20%.en_UK
dc.identifier.citationSaleem M, Spagni A, Alibardi L, et al., (2018) Assessment of dynamic membrane filtration for biological treatment of old landfill leachate. Journal of Environmental Management, Volume 213, May 2018, pp. 27-35en_UK
dc.identifier.issn0301-4797
dc.identifier.urihttp://dx.doi.org/10.1016/j.jenvman.2018.02.057
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/13085
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectDynamic membraneen_UK
dc.subjectFoulingen_UK
dc.subjectLandfill leachateen_UK
dc.subjectMesh filtrationen_UK
dc.subjectNitrificationen_UK
dc.subjectDenitrificationen_UK
dc.titleAssessment of dynamic membrane filtration for biological treatment of old landfill leachateen_UK
dc.typeArticleen_UK

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