2026-04-21T03:39:47Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/82782024-01-11T01:05:23Zcom_10259_4244com_10259_5086com_10259_2604com_10259_4402col_10259_4245col_10259_6209

Martínez Díaz, Raquel 98de4ca0-fcac-445f-be78-3dff5312d01c 600 Ruiz Pérez, María Olga 503 600 0000-0003-0399-092X Ramos Rodríguez, Cipriano 464 600 0000-0001-9099-8633 Cámara Nebreda, José María 95 600 0000-0003-3743-2088 Diez Blanco, Victorino 151 600 0000-0003-1679-133X 2024-01-10T08:54:45Z 2024-01-10T08:54:45Z 2020-07 1369-703X http://hdl.handle.net/10259/8278 10.1016/j.bej.2020.107558 Anaerobic sludge filtration tests were performed with two experimental set-ups equipped with either submerged hollow-fiber membranes or external tubular membranes operated with low crossflow velocity and gas sparging in a gas-lift mode. Particle size distributions, extracellular polymeric substance concentrations, methanogenic activity, reversible and irreversible fouling rates, and chemical cleaning efficiency were all studied and compared. An increase in the percentage of smaller particles and a decrease in the concentration of volatile suspended solids in the external membrane set-up were observed. Both soluble protein and soluble polysaccharide concentrations were also higher in the external filtration. Operating at 12–15 L/m2 h for 7 days, the total resistance of the external membrane reached 9.3 × 1012 m−1, while the resistance of submerged membrane reached 1.1 × 1012 m−1 despite operating at 15–25 L/m2 h for 12 days. Finally, the type of fouling and the efficiency of chemical cleaning also differed in both configurations. The authors gratefully acknowledge financial support provided by TCUE 2015–2017 cofounded by European Regional Development Fund (ERDF) and Junta de Castilla y León and the inestimable collaboration of Campofrio Frescos and Grupo Ecoalia. application/pdf eng Elsevier Biochemical Engineering Journal. 2020, V. 159, 107558 https://doi.org/10.1016/j.bej.2020.107558 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Submerged filtration External filtration Anaerobic membrane bioreactor Gas-lift mode Shear stress Fouling rate Ingeniería química Bioquímica Chemical engineering Biochemistry Comparison of external and submerged membranes used in anaerobic membrane bioreactors: Fouling related issues and biological activity info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Biochemical Engineering Journal 159 107558 THUMBNAIL Martinez-bej_2020.pdf.jpg Martinez-bej_2020.pdf.jpg IM Thumbnail image/jpeg 4306 https://riubu.ubu.es/bitstream/10259/8278/4/Martinez-bej_2020.pdf.jpg 3da07618c9646b1fd929e870b78aeae7 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/8278/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/8278/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Martinez-bej_2020.pdf Martinez-bej_2020.pdf application/pdf 578530 https://riubu.ubu.es/bitstream/10259/8278/1/Martinez-bej_2020.pdf b4a5d1b97a908ee9e9dfc3af651439fd MD5 1 10259/8278 oai:riubu.ubu.es:10259/8278 2024-01-11 02:05:23.029 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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