The paper deals with the results obtained as nitrogen removal in a platform for the treatment of industrial liquid wastes. The reaching of the optimal reduction percentages was related, at first, with the choice of a flexible treatment flow scheme characterized by the application of best available technologies. The advanced alternate cycles process in the biological reactor determined, after three months of experimental work, removal performances on average equal to 97% for the ammonia and 77% for TN. Moreover, the best nitrification results were achieved despite the complex mixtures of different chemical species in the main influent that can inhibit the NH 4-N reduction. The ammonia uptake rate measured was 0.112 kgNO x- NkgVSS -1 d -1 at 20 °C. The denitrification process was assured also at COD/TN condition lower than 5
Biological nitrogen removal at high performances in platform for the treatment of industrial liquid wastes
FATONE, Francesco;
2009-01-01
Abstract
The paper deals with the results obtained as nitrogen removal in a platform for the treatment of industrial liquid wastes. The reaching of the optimal reduction percentages was related, at first, with the choice of a flexible treatment flow scheme characterized by the application of best available technologies. The advanced alternate cycles process in the biological reactor determined, after three months of experimental work, removal performances on average equal to 97% for the ammonia and 77% for TN. Moreover, the best nitrification results were achieved despite the complex mixtures of different chemical species in the main influent that can inhibit the NH 4-N reduction. The ammonia uptake rate measured was 0.112 kgNO x- NkgVSS -1 d -1 at 20 °C. The denitrification process was assured also at COD/TN condition lower than 5I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.