title: Effect of bioaugmentation on anaerobic wastewater treatment in the dairy industry.
abstract: The creation of a biofilm as a specialized biosystem, its development, and activity were studied at 3 critical control points of biofilter operation: start-up, transition from batch to sequencing batch regimen, and set-up of stable sequencing batch process. Five variants of biosystems were investigated with an inoculum from specially adapted real activated sludge, enriched with various combinations of 3 microbial preparations. A stable and working biofilm was developed in the phase of stabilized sequencing batch process. The differences among biodegradation effectiveness of the 5 variants were insignificant during that phase and the effect of the preparations was low. The effectiveness of organic removal for the 5 bioaugmentation approaches reached 60% for protein, 70% for chemical oxygen demand, and 97% for lactose. Commercial inocula did not improve final reactor performance over an inoculum from a municipal wastewater treatment plant alone.
authors.affiliation: Department of General and Applied Hydrobiology, Faculty of Biology, Sofia St. Kliment Ohridski University, Sofia, Bulgaria. i.schneider@abv.bg
authors.forename: I D
authors.initials: ID
authors.lastname: Schneider
authors.forename: Y I
authors.initials: YI
authors.lastname: Topalova
mesh_terms: D000693:Anaerobiosis; D000818:Animals; D001421:Bacteria, Anaerobic / Q000378:metabolism*; D018441:Biofilms; D019149:Bioreactors / Q000662:veterinary*; D002417:Cattle; D003612:Dairying / Q000379:methods*; D014865:Waste Disposal, Fluid / Q000379:methods*