Determination of kinetic parameters in fixed-film bio-reactors: an inverse problem approach

A model for treating polluted air streams in a continuous two liquid phase stirred tank bioreactor

“…The operational data (volume of the phases, mass transfer coefficients and biokinetic parameters) are not from any specific operations and have been chosen arbitrarily. It should be noted that these data are in the range of the data that have been reported in the literatures [10][11][12][13][14][15][16]. In all simulation cases presented here, it is assumed that the pollutant and oxygen concentrations in the organic phase do not change along the recycle path (so the first term in 4 and 8 can be deleted).…”

Biological nitrogen and phenol removal from saline industrial wastewater by submerged fixed-film reactor

“…In recent years there have been considerable advances in submerged fixed-film reactor technology for the removal of nutrients, and there are currently different configurations, which may be adapted to the effluents treated [12]. Water treatment by submerged fixed-film filter technology requires the formation of a biofilm around an inert substance.…”

Mathematical and kinetic modeling of biofilm reactor based on ant colony optimization

“…The validity of the estimated kinetic parameters and their influence on the model predictions is analyzed by means of a simple expression that relates the substrate removal efficiency, E s with the net specific growth, u such that E s = K u (HRT) u , where K u is a biomass constant. This measure has been used by Daryapurkar et al to evaluate the substrate removal efficiency of tannery wastewater treatment process in experimental reactors of different configurations and has been further verified to test the accuracy of the Haldane model coefficients evaluated by DE for the case of anaerobic treatment of tannery wastewater in a fixed film bioreactor [16]. In this work, the same measure is employed to test the adequacy of the Haldane model coefficients evaluated by ACO-IM for the data of tannery wastewater treatment process.…”

“…Since the experimental data of this work has not been available earlier to evaluate the biofilm kinetics by other researchers, an additional test case of existing data is considered for mathematical and kinetic modeling of biofilm reactor and validating the significance of the method of ACO-IM. Thus a tannery waste water treatment data of bench scale anaerobic fixed film reactors reported by Daryapurkar et al [26] and further used by Kiranmai et al [16] has been considered as an another test case for validating the models and the method of optimization. More details concerning the geometric configuration and operating data of the reactor can be referred in those two references.…”

“…In recent years, evolutionary optimization algorithms are being used in place of traditional algorithms to solve a variety of optimization problems [14,15]. Of late, an evolutionary method known as differential evolution (DE) has been reported for numerical evaluation of kinetic parameters of a wastewater treatment fixed film bioreactor [16]. In that method, the kinetic parameters are evaluated based on a set of literature reported data obtained by using the influent substrate with low organic loading rates.…”