TY - JOUR
T1 - Predictive control of an activated sludge process for long term operation
AU - Foscoliano, Chiara
AU - Del Vigo, Stefania
AU - Mulas, Michela
AU - Tronci, Stefania
PY - 2016/11/15
Y1 - 2016/11/15
N2 - The application of a multivariable predictive controller to an activated sludge process is discussed in this work. Emphasis is given to the model identification and the long term assessment of the controller efficiency in terms of economical and environmental performances. A recurrent neural network model is developed for the identification problem and the dynamic matrix control is chosen as suitable predictive control algorithm for controlling the nitrogen compounds in the bioreactor. Using the Benchmark Simulation Model No. 1 as virtual platform, different predictive controller configurations are tested and further improvements are achieved by controlling the suspended solids at the end of the bioreactor. Based on the simulation results, this work shows the potentiality of the dynamic matrix control that together with a careful identification of the process, is able to decrease the energy consumption costs and, at the same time, reduce the ammonia peaks and nitrate concentration in the effluent.
AB - The application of a multivariable predictive controller to an activated sludge process is discussed in this work. Emphasis is given to the model identification and the long term assessment of the controller efficiency in terms of economical and environmental performances. A recurrent neural network model is developed for the identification problem and the dynamic matrix control is chosen as suitable predictive control algorithm for controlling the nitrogen compounds in the bioreactor. Using the Benchmark Simulation Model No. 1 as virtual platform, different predictive controller configurations are tested and further improvements are achieved by controlling the suspended solids at the end of the bioreactor. Based on the simulation results, this work shows the potentiality of the dynamic matrix control that together with a careful identification of the process, is able to decrease the energy consumption costs and, at the same time, reduce the ammonia peaks and nitrate concentration in the effluent.
KW - Activated sludge process
KW - BSM1
KW - Model predictive control
KW - Process identification
UR - http://www.scopus.com/inward/record.url?scp=84989938843&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2016.07.018
DO - 10.1016/j.cej.2016.07.018
M3 - Article
AN - SCOPUS:84989938843
SN - 1385-8947
VL - 304
SP - 1031
EP - 1044
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -