title: Treatment of brewery slurry in thermophilic anaerobic sequencing batch reactor.
abstract: Treatment of brewery slurry in a thermophilic anaerobic sequencing batch reactor (ASBR) was studied using conventional fully mixed semi-continuous digestion as a control. The process phases were adapted to fit the brewery slurry discharge schedule. ASBR experiments were conducted under different organic loading rates (OLR) from 3.23 to 8.57 kg of COD/m(3)day of reactor and control was conducted with OLR of 3.0 kg of COD/m(3)day. The ASBR COD degradation efficiency was from 79.6% to 88.9%, control experiment efficiency was 65%. ASBR VSS removal efficiency was from 78.5% to 90.5%, control experiment efficiency was 54%. The ASBR methane production yield was from 371 to 418 L/kg COD inserted, control experiment methane yield was 248 L/kg COD inserted. The ASBR process was superior to conventional fully mixed digestion, and is fully adaptable to brewery slurry discharge, needs no additional collection and settling pools and experiences no solids settling problems.
authors.affiliation: National Institute of Chemistry, P.O. Box 660, Hajdrihova 19, SI-1001 Ljubljana, Slovenia. gregor.zupancic@ki.si
authors.forename: Gregor D
authors.initials: GD
authors.lastname: Zupancic
authors.forename: Matej
authors.initials: M
authors.lastname: Straziscar
authors.forename: Milenko
authors.initials: M
authors.lastname: Ros
mesh_terms: D001421:Bacteria, Anaerobic / Q000378:metabolism*; D001515:Beer; D001673:Biodegradation, Environmental; D019149:Bioreactors; D006358:Hot Temperature; D007220:Industrial Waste / Q000032:analysis*; D008697:Methane / Q000096:biosynthesis*; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*
chemical_list: D007220:Industrial Waste; D008697:Methane