title: Model-based evaluation of an on-line control strategy for SBRs based on OUR and ORP measurements.
abstract: Application of control strategies for existing wastewater treatment technologies becomes necessary to meet ever-stricter effluent legislations and reduce the associated treatment costs. In the case of SBR technology, controlling the phase scheduling is one of the key aspects of SBR operation. In this study a calibrated mechanistic model based on the ASM1 was used to evaluate an on-line control strategy for the SBR phase-scheduling and compare it with the SBR's performance using no control strategy. To evaluate the performance, reference indices relating to the effluent quality, the required energy for aeration and the treated wastewater volume were used. The results showed that it is possible to maintain optimal SBR performance in the studied system at minimal costs by on-line control of the length of the aerobic and anoxic phases.
authors.affiliation: Laboratory of Chemical and Environmental Engineering (LEQUIA), Institute of Environment (IMA-UdG), University of Girona, Campus Montilivi, E-17071 Girona, Catalonia, Spain. lluis@lequia.udg.es
authors.forename: Ll
authors.initials: L
authors.lastname: Corominas
authors.forename: G
authors.initials: G
authors.lastname: Sin
authors.forename: S
authors.initials: S
authors.lastname: Puig
authors.forename: A
authors.initials: A
authors.lastname: Traore
authors.forename: M
authors.initials: M
authors.lastname: Balaguer
authors.forename: J
authors.initials: J
authors.lastname: Colprim
authors.forename: P A
authors.initials: PA
authors.lastname: Vanrolleghem
mesh_terms: D019149:Bioreactors; D002138:Calibration; D003246:Conservation of Energy Resources; D008954:Models, Biological; D009584:Nitrogen / Q000302:isolation & purification / Q000378:metabolism; D009862:Online Systems; D010084:Oxidation-Reduction; D010100:Oxygen / Q000032:analysis / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000295:instrumentation* / Q000379:methods
chemical_list: D009584:Nitrogen; D010100:Oxygen