Full-Scale Use of Glycogen-Accumulating Organisms for Excess Biological Carbon Removal

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 proc...

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Bibliographic Details
Published in:Water environment research 2011-09, Vol.83 (9), p.855-864
Main Authors: Kiss, Bernadett, Bakos, Vince, Liu, Wen-Tso, Jobbágy, Andrea
Format: Article
Language:English
Subjects:
Applied sciences
Bacteria
Biomass
Carbon - metabolism
Chemical engineering
Chemical oxygen demand
Cod
Efficiency
Exact sciences and technology
excess biological carbon removal
Experiments
Food Industry
General purification processes
Glycogen - metabolism
glycogen‐accumulating organism
Industrial Waste
Liquid-liquid and fluid-solid mechanical separations
Microbiology
nutrient deficiency
Phosphorus removal
Pollution
Settling
Sewage
Sewerage works: sewers, sewage treatment plants, outfalls
Sludge
Studies
Wastewaters
Water Pollutants, Chemical - metabolism
Water pollution
Water treatment
Water treatment and pollution
Wineries & vineyards
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Summary: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.
ISSN:1061-4303
1554-7531
DOI:10.2175/106143010X12851009156844