3.1 and 3.2 present the results for the entire 3 years of operation, while Section 3.3 focuses only on the results obtained after bacteria stabilised. In Section 3.1 we present the evolution of the total biomass of the different bacteria groups. Only partial attention was given to bacterial distribution in this section. In Section 3.2 the pollutant removal efficiencies obtained with the model are presented. The first part of Section 3.3 presents the results obtained with the three indicators of bacterial stabilisation. In the second part we present bacterial distribution when stability is achieved.