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On-line estimation of VFA concentration in anaerobic digestion via methane outflow rate measurements

dc.contributor.authorLara Cisneros, Gerardo
dc.contributor.authorAguilar López, Ricardo
dc.contributor.authorDochain, Denis
dc.contributor.authorFemat Flores, Alejandro Ricardo
dc.date.accessioned2019-01-11T19:47:23Z
dc.date.available2019-01-11T19:47:23Z
dc.date.issued2016-11
dc.identifier.citationGerardo Lara-Cisneros, Ricardo Aguilar-López, Denis Dochain, Ricardo Femat, On-line estimation of VFA concentration in anaerobic digestion via methane outflow rate measurements, Computers & Chemical Engineering, Volume 94, 2016, Pages 250-256.es_MX
dc.identifier.urihttp://hdl.handle.net/11627/4857
dc.description.abstract"This paper deals with the design of a robust nonlinear observer as a software sensor to achieve the on-line estimation of the concentration of Volatile Fatty Acids (VFA) in a class of continuous anaerobic digesters (AD). Taking into account the limited availability of on-line sensors for AD process, in this contribution is assumed that only the methane outflow rate is available for on-line measurement. The estimation method is based on a modified version for a two-dimensional mathematical model of AD process. From the differential algebraic observability approach it is shown that the VFA concentration is detectable from the methane outflow rate measurements. The observer convergence is analyzed by using Lyapunov stability techniques. Numerical simulations illustrate the effectiveness of the proposed estimation method for a four-dimensional AD model with uncertainties associated with unmodeled dynamics and disturbances in the inflow composition."es_MX
dc.language.isoenges_MX
dc.publisherElsevieres_MX
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAnaerobic digestiones_MX
dc.subjectState observeres_MX
dc.subjectVFA estimationes_MX
dc.subjectUncertain reaction systemses_MX
dc.subjectSoftware sensorses_MX
dc.subject.classificationAreaes_MX
dc.titleOn-line estimation of VFA concentration in anaerobic digestion via methane outflow rate measurementses_MX
dc.typearticlees_MX
dc.identifier.doihttps://doi.org/10.1016/j.compchemeng.2016.07.005


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional