title: Full-scale use of glycogen-accumulating organisms for excess biological carbon removal.
abstract: The purpose of this study has been to verify the efficient full-scale applicability of glycogen-accumulating organisms (GAOs) for excess biological carbon removal, that is, for removing more carbon substrate than the amount of available nutrients would allow in the conventional activated sludge process of microbial growth. This aims to cost-effectively overcome the problem of viscous bulking occurring in a fully aerated system, with nutrient deficiency. Analytical data measured at the wastewater treatment plant of the Balatonboglár (BB) winery in Balatonboglár, Hungary, containing consecutive unaerated and aerated activated sludge basins, reflected a high performance with efficient carbon removal and good sludge settling, without dosing any external nutrient source to the severely nitrogen- and phosphorous-deficient influent. Supplementary laboratory-scale batch experiments and microbiological tests verified the abundance of GAOs in the activated sludge system and elucidated their role in efficient excess biological carbon removal.
authors.affiliation: Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Budapest, Hungary.
authors.forename: Bernadett
authors.initials: B
authors.lastname: Kiss
authors.forename: Vince
authors.initials: V
authors.lastname: Bakos
authors.forename: Wen-Tso
authors.initials: WT
authors.lastname: Liu
authors.forename: Andrea
authors.initials: A
authors.lastname: Jobbágy
mesh_terms: D002244:Carbon / Q000378:metabolism*; D019649:Food Industry; D006003:Glycogen / Q000378:metabolism*; D007220:Industrial Waste; D012722:Sewage; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D007220:Industrial Waste; D012722:Sewage; D014874:Water Pollutants, Chemical; D002244:Carbon; D006003:Glycogen