Mathematical Modelling of Wastewater Treatment Plant of Žiar nad Hronom
Ján Derco *, Lenka Černochová, Michal Melicher
Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, STU, Radlinského 9, 81237 Bratislava, Slovakia
E-mail: * jan.derco@stuba.sk
Abstract: The calibration of Activated Sludge Model No. 1 (ASM1) for operational mode of wastewater treatment plant (WWTP) in Žiar nad Hronom was performed. Simulation program of single sludge process (SSSP), based on the Monod type biochemical reaction kinetics was applied. Measurements of diurnal variation of wastewater flow and composition at the influent and effluent of biological stage of the WWTP were carried out. The experimental data were transformed according to structure and process components of the mathematical model. Pre-denitrification system was used to transform alternating biological treatment technology operated at the WWTP to computer scheme. The calibration of mathematical model involved operational the parameter values (solid retention time, recirculation ratio) and the values of biokinetic parameters. The residual sum squares between the experimental and calculated values of process components was used as an objective function. Availability of the calibrated model for description of dynamic behaviour of the biological stage of the WWTP follows from the work.
Keywords: Biological processes, calibration, denitrification, dynamic behaviour, mathematical modelling, Monod kinetics, nitrification, simulation program, wastewater
Full paper in Portable Document Format: acs_0056.pdf
Acta Chimica Slovaca, Vol. 3, No. 1, 2010, pp. 29—40