Calibration of denitrifying activity of polyphosphate accumulating organisms in an extended ASM2d model

摘要: Abstract This paper presents the results of an experimental study for modelling and calibration denitrifying activity polyphosphate accumulating organisms (PAOs) in full-scale WWTPs that incorporate simultaneous nitrogen phosphorus removal. The convenience using different yields under aerobic anoxic conditions biological removal processes with ASM2d has been demonstrated. Thus, parameter ηPAO model is given a physical meaning represents fraction PAOs are able to follow DPAO metabolism. Using stoichiometric relationships, which based on assumed biochemical pathways, considered extended can be obtained as function their respective yields. this modification does not mean extra effort obtain new parameters. In work, off-line methodology applied validate model, where general relationships among parameters proposed avoid increasing number calibrate. have validated through UCT scheme pilot plant fed municipal wastewater. good concordance between simulated values validates use well methodology. Deterministic approaches, together methodologies, assist decision-making about further process optimization phosphate removal, since by give valuable information activated sludge such amount DPAOs system.