title: Study of performances, stability and microbial characterization of a Sequencing Batch Biofilter Granular Reactor working at low recirculation flow.
abstract: The Sequencing Batch Biofilter Granular Reactor (SBBGR) is a promising wastewater treatment technology characterized by high biomass concentration in the system, good depuration performance and low sludge production. Its main drawback is the high energy consumption required for wastewater recirculation through the reactor bed to ensure both shear stress and oxygen supply. Therefore, the effect of low recirculation flow on the long-term (38 months) performance of a laboratory scale SBBGR was studied. Both the microbial components of the granules, and their main metabolic activities were evaluated (heterotrophic oxidation, nitrification, denitrification, fermentation, sulphate reduction and methanogenesis). The results indicate that despite reduced recirculation, the SBBGR system maintained many of its advantageous characteristics.
authors: Water Research Institute, CNR, Via F. De Blasio 5, 70123 Bari, Italy. desanctis@irsa.cnr.it
authors: Marco
authors: M
authors: De Sanctis
authors: Mario
authors: M
authors: Beccari
authors: Claudio
authors: C
authors: Di Iaconi
authors: Mauro
authors: M
authors: Majone
authors: Simona
authors: S
authors: Rossetti
authors: Valter
authors: V
authors: Tandoi
mesh_terms: D001420:Bacteria, Aerobic / Q000302:isolation & purification* / Q000378:metabolism*; D061249:Batch Cell Culture Techniques / Q000295:instrumentation*; D019149:Bioreactors / Q000382:microbiology*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008697:Methane / Q000302:isolation & purification / Q000378:metabolism*; D012722:Sewage / Q000382:microbiology*
chemical_list: D012722:Sewage; D008697:Methane