ADAPTATING DYNAMIC SIMULATION TO A WASTEWATER TREATMENT PLANT RECONSTRUCTION

Engineering and Chemical Technology

The examined municipal wastewater plant was designed for 100,000 population equivalent

(PE) and which was previously operating as a total oxidation system. The management

wanted the plant to perform denitrification and excess phosphorus removal out of economical

and environmental reasons. In this study the reconstruction plan created by the company was

examined with the help of modelling software. On behalf of this the plant would function well

during the summer, but at low water temperature (15°C) the expected results would not be

met. Therefore the authors, after further calculations, suggested a new scheme. Unfortunately

according to the simulation due to the present circumstances i.e. limited reactor volumes

neither variation would be capable of excess phosphorus removal.