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Modelling population dynamics of denitrifying phosphorus accumulating organisms in activated sludge

TitleModelling population dynamics of denitrifying phosphorus accumulating organisms in activated sludge
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2002
AuthorsSpagni, A., Stante Loredana, and Bortone G.
JournalWater Science and Technology
Volume46
Pagination323-326
ISSN02731223
KeywordsAcetic acid, activated sludge, Aerobic, aerobic bacterium, aerobic metabolism, article, Bacteria, Bioreactor, Bioreactors, conference paper, denitrification, Fluid, Kinetics, mathematical model, microbial population dynamics, microbiology, microorganism, Models, Nitrogen, nonhuman, Nonmetals, phosphate, phosphate transport, Phosphorus, physiology, Population dynamics, prediction, Sequencing batch reactor, Sequencing batch reactors, sewage, Sewage sludge, simulation, Theoretical, theoretical model, Waste disposal
Abstract

In this paper a kinetic model for simulating population dynamics is developed. The aim was to simulate anoxic and aerobic phosphorus accumulating organisms dynamics in a lab-scale sequencing batch reactor (SBR) operating under different conditions. Denitrifying phosphorus accumulating organisms (DNPAOs) successfully competed in almost all the simulated operational conditions tested. Using this model, the anoxic energy disadvantage of DNPAOs was not as strong as using metabolic models. The model was able to predict reasonably well N, P and acetate profiles in the SBR with only a minor modification of the ASM2d default values of the parameters.

Notes

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0036024786&partnerID=40&md5=45f289bb2b525bdafabe39b1da852a80
Citation KeySpagni2002323