Resumen

ROSA, Miguel A; PERALTA, José M  y  BOSCO, Diego M. Estimation of Kinetic Parameters of the Aerobic Degradation of Dairy Wastewater using AQUASIM v 2.1b. Inf. tecnol. [online]. 2010, vol.21, n.3, pp. 51-56. ISSN 0718-0764.  doi: 10.4067/S0718-07642010000300006.

The kinetic constants of an aerobic biodegradation mechanism of dairy wastewaters were estimated using techniques of simulation, estimation of parameters and sensitivity analysis, available in the software Aquasim v 2.1b. A discontinuous, agitated reactor, of 4 liters capacity with a permanent air injection was used. Two kinetic models, Monod and first order were considered to represent substrate consumption as a function of time. Due to a high value of Monod's constant, K_S, the data analysis was restricted to the first kinetic proposed. The values obtained for the parameters of endogenous breathing k_d and cellular synthesis Y, were similar, whereas the sensitivity analysis revealed non-identifying Monod parameters. The importance of this software to carry out the analysis shown above and the validation of the first order kinetic for representing the substrate consumption are two of the most important conclusions of this work.

Palabras clave : dairy wastewater; substrate degradation; kinetic parameters; sensitivity analysis.