title: Anaerobic sequencing batch reactor as an alternative for the biological treatment of wine distillery effluents.
abstract: The goal of this study was to assess the effect of different modes of operation and configurations of Anaerobic Sequencing Batch Reactors (ASBRs) treating phenolic wastewater. Several lab-scale reactors were used in the mesophilic range. The reactors were fed with synthetic wastewater with a COD of 5 g/L using phenol as a carbon source (variable concentration) and glucose as a co-substrate. One and two-phase (hydrolytic/acidogenic-methanogenic) systems in batch and fed-batch operation were evaluated. The one-stage reactor operated by the fed batch (which was the only configuration using phenol as a sole carbon source), presented better results for the removal of phenol, reaching 100% removal in 10 days at a concentration of 210 mg/L. The two-stage configuration had removal percentages near 100%, but the methanogenic reactor presented greater degradation of the remaining phenol not removed in the hydrolytic/acidogenic reactor. ASBRs might be a feasible alternative to treat this type of effluent due to their operational flexibility.
authors.affiliation: School of Biochemical Engineering, Facultad de Ingeniería, Pontificia Universidad Católica de Valparaíso, General Cruz 34, Valparaiso, Chile.
authors.forename: Andrés
authors.initials: A
authors.lastname: Donoso-Bravo
authors.forename: Francisca
authors.initials: F
authors.lastname: Rosenkranz
authors.forename: Viviana
authors.initials: V
authors.lastname: Valdivia
authors.forename: Michel
authors.initials: M
authors.lastname: Torrijos
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Ruiz-Filippi
authors.forename: Rolando
authors.initials: R
authors.lastname: Chamy
mesh_terms: D000693:Anaerobiosis; D019649:Food Industry / Q000379:methods*; D007700:Kinetics; D019800:Phenol / Q000737:chemistry; D013997:Time Factors; D018505:Waste Management / Q000379:methods*; D014920:Wine
chemical_list: D019800:Phenol