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Full‐Scale Use of Glycogen‐Accumulating Organisms for Excess Biological Carbon Removal
Author(s) -
Kiss Bernadett,
Bakos Vince,
Liu WenTso,
Jobbágy Andrea
Publication year - 2011
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143010x12851009156844
Subject(s) - aeration , activated sludge , nutrient , wastewater , pulp and paper industry , sewage treatment , carbon fibers , environmental science , enhanced biological phosphorus removal , carbon source , chemistry , activated carbon , settling , environmental engineering , environmental chemistry , waste management , biochemistry , materials science , organic chemistry , engineering , adsorption , composite number , composite material
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.