Transient analysis of a wastewater treatment biofilter – distributed parameter modelling and state estimation

Autor:	Isabelle Queinnec, Philippe Bogaerts, C. Renotte, A. Vande Wouwer
Rok vydání:	2006
Předmět:	Pointwise Engineering Partial differential equation Observer (quantum physics) business.industry Applied Mathematics Biomass Experimental data Computer Science Applications Wastewater Control and Systems Engineering Distributed parameter system Control theory Modeling and Simulation Biofilter business Biological system Software
Zdroj:	Mathematical and Computer Modelling of Dynamical Systems. 12:423-440
ISSN:	1744-5051 1387-3954
DOI:	10.1080/13873950600723335
Popis:	This paper is concerned with a pilot-scale fixed-bed biofilter used for nitrogen removal from municipal wastewater. Process modelling yields a set of mass balance partial differential equations describing the evolution of the component concentrations along the biofilter. Based on sets of experimental data collected over several months, unknown model parameters are estimated by minimizing an output-error criterion. The resulting distributed parameter model and a few pointwise measurements of nitrate, nitrite, and ethanol concentrations are then used to design observers allowing the unmeasured biomass concentrations to be reconstructed on-line. First, it is demonstrated that asymptotic observers are not applicable to the given model structure. Then, a receding-horizon observer is designed and tested, showing a very satisfactory performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::537955209ec2d92db1e0d6a4cb82b566 https://doi.org/10.1080/13873950600723335 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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