Recent advances in bio-P modelling – a new approach verified by full-scale observations
Author(s) -
Erika Varga,
Hélène Hauduc,
James Barnard,
Patrick Dunlap,
José Jiménez,
Adrienne Menniti,
Peter Schauer,
Carlos M. López-Vázquez,
April Z. Gu,
Mathieu Spérandio,
Imre Takács
Publication year - 2018
Publication title -
water science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.406
H-Index - 137
eISSN - 1996-9732
pISSN - 0273-1223
DOI - 10.2166/wst.2018.490
Subject(s) - enhanced biological phosphorus removal , anoxic waters , environmental science , biochemical engineering , full scale , biomass (ecology) , denitrification , process engineering , computer science , environmental engineering , chemistry , environmental chemistry , engineering , sewage treatment , ecology , activated sludge , biology , organic chemistry , nitrogen , computer vision
This paper summarizes recent developments in biological phosphorus removal modelling, with special attention to side-stream enhanced biological phosphorus removal (S2EBPR) systems on which previous models proved to be ineffective without case-by-case parameter adjustments. Through the research and experience of experts and practitioners, a new bio-kinetic model was developed including an additional group of biomass (glycogen accumulating organisms - GAOs) and new processes (such as aerobic and anoxic maintenance for PAO and GAO; enhanced denitrification processes; fermentation by PAOs which - along with PAO selection - is driven by oxidation-reduction potential (ORP)). This model successfully described various conditions in laboratory measurements and full plant data. The calibration data set is provided by Clean Water Services from Rock Creek Facility (Hillsboro, OR) including two parallel trains: conventional A2O and Westbank configurations, allowing the model to be verified on conventional and side-stream EBPR systems as well.
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