Kh. Rosenwinkel et al., Performance of the biological nitrogen and phosphorus removal in four large WWTPs in Germany, WATER SCI T, 41(9), 2000, pp. 233-240
In this paper the design data. flow sheets, operating results and running e
xperiences of four municipal wastewater treatment plants are presented. The
size of these plants varies between 95,000 and 830,000 people equivalents.
Different activated sludge systems running with cascades and simultaneous
nitrification/denitrification are practised in these plants. The data of th
ese different plants are compared.