title: Effects of glucose on the performance of enhanced biological phosphorus removal activated sludge enriched with acetate.
abstract: The effects of glucose on enhanced biological phosphorus removal (EBPR) activated sludge enriched with acetate was investigated using sequencing batch reactors. A glucose/acetate mixture was serially added to the test reactor in ratios of 25/75%, 50/50%, and 75/25% and the EBPR activity was compared to the control reactor fed with 100% acetate. P removal increased at a statistically significant level to a near-complete in the test reactor when the mixture increased to 50/50%. However, EBPR deteriorated when the glucose/acetate mixture increased to 75/25% in the test reactor and when the control reactor abruptly switched to 100% glucose. These results, in contrast to the EBPR conventional wisdom, suggest that the addition of glucose at moderate levels in wastewaters does not impede and may enhance EBPR, and that glucose waste products should be explored as an economical sustainable alternative when COD enhancement of EBPR is needed.
authors.affiliation: Department of Civil and Environmental Engineering, Washington State University, Pullman, WA 99164-2910, USA. gebremariam.6@osu.edu
authors.forename: Seyoum Yami
authors.initials: SY
authors.lastname: Gebremariam
authors.forename: Marc W
authors.initials: MW
authors.lastname: Beutel
authors.forename: David
authors.initials: D
authors.lastname: Christian
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Hess
mesh_terms: D000085:Acetates / Q000032:analysis / Q000378:metabolism*; D057919:Biological Oxygen Demand Analysis; D005947:Glucose / Q000032:analysis / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D010758:Phosphorus / Q000302:isolation & purification*; D012722:Sewage / Q000032:analysis* / Q000382:microbiology; D013056:Spectrophotometry, Ultraviolet; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
chemical_list: D000085:Acetates; D012722:Sewage; D010758:Phosphorus; D005947:Glucose