TY - JOUR
T1 - Cost reduction of the wastewater treatment plant operation by MPC based on modified ASM1 with two-step nitrification/denitrification model
AU - Ostace, George Simion
AU - Cristea, Vasile Mircea
AU - Agachi, Paul Şerban
PY - 2011/11/15
Y1 - 2011/11/15
N2 - The Activated Sludge Model No. 1 (ASM1) considers that nitrification and denitrification are single step processes and nitrite nitrogen (NO2-N), which is an intermediate for the two processes, is not accounted for. The first part of this paper presents the development of an enhanced ASM1 with two step nitrification/denitrification processes and its implementation in the Benchmark Simulation Model No.1 wastewater treatment plant (WWTP). The secondary settler was considered to be reactive in order to achieve a better fit between the simulation model and the behavior of the real WWTP. The second part presents the investigation of Model Predictive Control approach for the advanced control of the WWTP. Two control strategies are implemented for the wastewater treatment plant and they are analyzed from the perspective of the benefits brought to the WWTP operation. The proposed control strategy shows a reduction of the operational costs and the improvement of the effluent quality index.
AB - The Activated Sludge Model No. 1 (ASM1) considers that nitrification and denitrification are single step processes and nitrite nitrogen (NO2-N), which is an intermediate for the two processes, is not accounted for. The first part of this paper presents the development of an enhanced ASM1 with two step nitrification/denitrification processes and its implementation in the Benchmark Simulation Model No.1 wastewater treatment plant (WWTP). The secondary settler was considered to be reactive in order to achieve a better fit between the simulation model and the behavior of the real WWTP. The second part presents the investigation of Model Predictive Control approach for the advanced control of the WWTP. Two control strategies are implemented for the wastewater treatment plant and they are analyzed from the perspective of the benefits brought to the WWTP operation. The proposed control strategy shows a reduction of the operational costs and the improvement of the effluent quality index.
UR - http://www.scopus.com/inward/record.url?scp=80052613634&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052613634&partnerID=8YFLogxK
U2 - 10.1016/j.compchemeng.2011.03.031
DO - 10.1016/j.compchemeng.2011.03.031
M3 - Article
AN - SCOPUS:80052613634
SN - 0098-1354
VL - 35
SP - 2469
EP - 2479
JO - Computers and Chemical Engineering
JF - Computers and Chemical Engineering
IS - 11
ER -