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Información tecnológica

On-line version ISSN 0718-0764

Abstract

ROSA, Miguel A; PERALTA, José M; GILLI, Daniel A  and  BOSCO, Diego M. Kinetic of Dairy Wastewater Biodegradation: Applications of Data Analysis Techniques for Model Comparison. Inf. tecnol. [online]. 2008, vol.19, n.4, pp.11-18. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642008000400003.

a comparative analysis of three kinetic models (Monod, exponential and n-order kinetic) representative of substrate degradation of effluents from a dairy factory is presented. Estimation of model parameters and sensitivity analysis were done through data analysis and computational simulation using the software Aquasim v. 2.1.b. Experimental data from a pilot plant were used, estimating the kinetic parameters and performing sensitivity analysis for each case. The n-order kinetic model (μ=k Sn) showed to be the best option to represent the degradation of the treated wastewater. With this model, besides achieving acceptable fitting of the experimental data, its parameters k and n are clearly identified. The Monod model, however, although gives lower error, contains parameters with no physical meaning.

Keywords : dairy effluents; substrate degradation; kinetic models; comparative analysis.

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