In this work, we are interested in the mathematical analysis of a model of a bioreactor based on the results of a model already implemented ADM1. It is an observability analysis and estimation scheme for specific growth rates for an anaerobic digestion process of cow dung. A 1- stage model of 3 dynamic states is assumed describing all anaerobic digestion with a different population of microorganisms, and the evaluation of biogas production (methane + carbon dioxide). The result of specific growth rates (µmax = 0.44d-1) of bacterial populations (24gL-1 ± 2.3%) and substrate (6.5gL-1± 0.5%) are estimated from the dilution rate and biogas. The dynamics of anaerobic digestion appear to depend on the type of organic matter contained in cow substrates.
SPECIFIC GROWTH RATE ESTIMATION FOR ANAEROBIC BIOREACTOR PROCESS MONITORING
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