On-line estimation of kinetic parameters in anaerobic digestion using observer-based estimators and multiwavelength fluorometry.
Observer-based estimators (OBE) were used for estimation of state variables and kinetic parameters in an anaerobic digestion (AD) process. A simplified first-order model with time-varying kinetic parameters was used to design an OBE for kinetic parameter estimation. This approach was validated on a laboratory-scale anaerobic reactor equipped with a multiwavelength fluorometer for on-line measurements of COD and VFA concentrations in the reactor effluent. The proposed estimators provide continuous adjustment of kinetic parameters and can be used for predictions of state variables between samples acquisition and during sensor failure.
Morel
E
E
Biotechnology Research Institute, National Research Council, Montreal, QC H4P 2R2, Canada. emmanuel.morel@cnrc-nrc.gc.ca
Tartakovsky
B
B
Guiot
S R
SR
Perrier
M
M
D001421:Bacteria, Anaerobic / Q000378:metabolism; D019149:Bioreactors; D005232:Fatty Acids, Volatile / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008697:Methane / Q000032:analysis; D008954:Models, Biological; D009862:Online Systems; D013050:Spectrometry, Fluorescence; D014865:Waste Disposal, Fluid / Q000295:instrumentation* / Q000379:methods
D005232:Fatty Acids, Volatile; D008697:Methane