Modelling biological phosphorus removal from a cheese factory effluent by an SBR

A mathematical model, named A3DX, based on ASM3(A3) for C and N removal, on the bio-P metabolic model of the Technological University of Delft (D), an d on extra processes (X) for chemical and biological phosphorus removal, wa s developed and used to simulate the treatment of a fermented cheese factor y effluent by a sequencing batch reactor (SBR). Experimental data obtained from a pilot-scale SBR were used to calibrate the model. The model calibrat ion was performed by changing a minimal number (four) of default values for parameters, and by introducing a Monod function to account for magnesium l imitation. This study suggests that the value of stoichiometric and kinetic model parameters determined with municipal effluents or enriched bio-P cul tures can be reasonably used with some agro-industrial effluents with minim al parameter adjustment for calibration.