Design and Development of a Soft-Sensor for Ammonia Degradation and Nitrite Accumulation in an Activated Sludge Reactor

Muñoz P., Carlos
Rojas A., Daniel
Antileo H., Christian

2007-03-21T15:45:09Z

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A soft-sensor for on-line estimation of ammonia degradation (α) and nitrite accumulation (β) is proposed in this paper. The soft-sensor has showed a good behavior in the following of trends and has got final values very close to the experimental analysis. Thought this soft-sensor was not conceived for replacing the laboratory analysis, gives α and β estimations for all the instants in between the laboratory sample taking. The data resulting from the laboratory analysis is used to update the model parameters on which the soft-sensor is based on. Furthermore, the model is used to feed an on-line optimization system to look for the pH and O2 set-points whose gives maximum ammonia degradation (α) and nitrite accumulation (β). This optimization system is executed every time that the model parameters are updated.

CONTROL DE PROCESOS; SENSORES; CONTROLADORES DIFUSOS; PROCESS CONTROL; SENSORS; FUZZY CONTROL;