Anaerobic sequencing batch reactor as an alternative for the biological treatment of wine distillery effluents.
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.
Donoso-Bravo
Andrés
A
School of Biochemical Engineering, Facultad de Ingeniería, Pontificia Universidad Católica de Valparaíso, General Cruz 34, Valparaiso, Chile.
Rosenkranz
Francisca
F
Valdivia
Viviana
V
Torrijos
Michel
M
Ruiz-Filippi
Gonzalo
G
Chamy
Rolando
R
D000693:Anaerobiosis; D019649:Food Industry / Q000379:methods*; D007700:Kinetics; D019800:Phenol / Q000737:chemistry; D013997:Time Factors; D018505:Waste Management / Q000379:methods*; D014920:Wine
D019800:Phenol