On-line estimation of kinetic parameters in anaerobic digestion using observer-based estimators and multiwavelength fluorometry

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DOIResolve DOI: http://doi.org/10.2166/wst.2006.112
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TypeArticle
Journal titleWater Science and Technology
ISSN0273-1223
Volume53
Issue4-5
Pages7783; # of pages: 7
SubjectBacteria, anaerobic; anaerobic digestion; bioreactors; env; fatty acids, volatile; hydrogen-ion concentration; kinetics; methane; models, biological; multiwavelength fluorometry; observer-based estimator; online systems; parameter estimation; spectrometry, fluorescence; waste disposal, fluid
AbstractObserver-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.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Biotechnology Research Institute
Peer reviewedNo
Identifier1026193x
NRC number47242
NPARC number12327653
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Record identifier0180310d-2eaf-43fa-8044-655a7f965c81
Record created2009-09-10
Record modified2016-05-09
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