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DatoValore
TitleSelf-Forming Dynamic Membrane BioReactors (SFD MBR) for municipal wastewater treatment: Relevance of solids retention time and biological process stability
AbstractA lab-scale Self-Forming Dynamic Membrane BioReactor (SFD MBR) equipped with a nylon mesh was operated for the treatment of real municipal wastewater under a volumetric loading rate of 0.9-1.1 gCOD L-1 d-1 and a flux of 61-68 L m-2 h-1. During an experimental period of more than 600 d, three runs were performed with different solids retention times (SRT of 15, 30, and 50 d). At the steady state, the system had always good biological and filtration performances, but the mesh clogging tendency and the solid removal observed varied with the SRT. Lower filtration performance, both in terms of permeate quality and productivity, was observed under unstable conditions for the biological processes, such as start-up and variations of the food-to-microorganism ratio. Higher SRT resulted in more stable biological process at the steady state, which positively affected the filtration performance even in front of organic load variations.
SourceSeparation and purification technology (Print)
Keywordsbiological processcake layerF/M ratiofiltrationMembrane Bioreactor
JournalSeparation and purification technology (Print)
EditorElsevier, New York ;, Paesi Bassi
Year2021
TypeArticolo in rivista
DOI10.1016/j.seppur.2020.117735
AuthorsPompilio Vergine; Carlo Salerno; Giovanni Berardi; Alfieri Pollice
Text431950 2021 10.1016/j.seppur.2020.117735 Scopus 2 s2.0 85091262384 biological process cake layer F/M ratio filtration Membrane Bioreactor Self Forming Dynamic Membrane BioReactors SFD MBR for municipal wastewater treatment Relevance of solids retention time and biological process stability Pompilio Vergine; Carlo Salerno; Giovanni Berardi; Alfieri Pollice IRSA CNR, Viale F. De Blasio, 5, 70132 Bari, Italy A lab scale Self Forming Dynamic Membrane BioReactor SFD MBR equipped with a nylon mesh was operated for the treatment of real municipal wastewater under a volumetric loading rate of 0.9 1.1 gCOD L 1 d 1 and a flux of 61 68 L m 2 h 1. During an experimental period of more than 600 d, three runs were performed with different solids retention times SRT of 15, 30, and 50 d . At the steady state, the system had always good biological and filtration performances, but the mesh clogging tendency and the solid removal observed varied with the SRT. Lower filtration performance, both in terms of permeate quality and productivity, was observed under unstable conditions for the biological processes, such as start up and variations of the food to microorganism ratio. Higher SRT resulted in more stable biological process at the steady state, which positively affected the filtration performance even in front of organic load variations. Published version https //www.scopus.com/record/display.uri eid=2 s2.0 85091262384 origin=resultslist SFD MBR for municipal wastewater treatment Relevance of solids retention time and biological process stability 2021 SFD MBR Relevance of SRT and biological process stability SEP PUR TECH.pdf Articolo in rivista Elsevier 1383 5866 Separation and purification technology Print Separation and purification technology Print Separation and purification technology. Print alfieri.pollice POLLICE ALFIERI giovanni.berardi BERARDI GIOVANNI pompilio.vergine VERGINE POMPILIO carlo.salerno SALERNO CARLO