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Biological Phosphorus Removal: Impact of the Aerobic Phase on Modeling Continuous-Flow Systems

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Process models for enhanced biological phosphorus removal systems are shown to predict anaerobic behavior better than aerobic behavior. Reasons for this include the use of uncalibrated kinetic parameters as well as difficulties introduced by the choice of model structure. A modeling approach is proposed in which model structure and stoichiometric values for both the anaerobic and aerobic phase are based on accepted metabolic pathways and kinetic parameters are calibrated based on results from a batch experimental system. Based on the results for over 20 experimental continuous-flow systems fed with both acetate and sewage, it is demonstrated that this Proposed Model gives improved predictions of phosphorus removal.
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Keywords: EBPR; Metabolic Models; PAOs; Phosphorus; Process Models; Wastewater

Document Type: Research Article

Publication date: 2009-01-01

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