Modelling and simulation of steady-state phenol degradation in a pulsed plate bioreactor with immobilised cells of Nocardia hydrocarbonoxydans
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2011
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Abstract
A novel bioreactor called pulsed plate bioreactor (PPBR) with cell immobilised glass particles in the interplate spaces was used for continuous aerobic biodegradation of phenol present in wastewater. A mathematical model consisting of mass balance equations and accounting for simultaneous external film mass transfer, internal diffusion and reaction is presented to describe the steady-state degradation of phenol by Nocardia hydrocarbonoxydans (Nch.) in this bioreactor. The growth of Nch. on phenol was found to follow Haldane substrate inhibition model. The biokinetic parameters at a temperature of 30 ± 1 °C and pH at 7.0 ± 0.1 are ? <inf>m</inf> = 0.5397 h -1, K <inf>S</inf> = 6.445 mg/L and K <inf>I</inf> = 855.7 mg/L. The mathematical model was able to predict the reactor performance, with a maximum error of 2% between the predicted and experimental percentage degradations of phenol. The biofilm internal diffusion rate was found to be the slowest step in biodegradation of phenol in a PPBR. © 2010 Springer-Verlag.
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Aerobic biodegradation, Bio-kinetic parameters, Degradation of phenols, Glass particles, Haldane, Immobilised Cells, Internal diffusion, Mass balance equations, Maximum error, Modelling, Modelling and simulations, Nocardia, Phenol degradation, Pulsed plate bioreactor, Reactor performance, Substrate inhibition, Biofilms, Biofilters, Biological water treatment, Bioreactors, Cell culture, Cells, Degradation, Mathematical models, Microbiology, Phenols, Wastewater, Biodegradation, phenol, aerobic metabolism, article, bacterial cell, bacterial growth, bacterial kinetics, bacterial metabolism, biodegradation, biofilm, controlled study, immobilized cell reactor, mathematical model, Nocardia hydrocarbonoxydans, nonhuman, priority journal, reactor monitoring, steady state, Algorithms, Biodegradation, Environmental, Cells, Immobilized, Computer Simulation, Diffusion, Kinetics, Models, Biological, Phenol, Temperature, Waste Disposal, Fluid, Pseudonocardia hydrocarbonoxydans
Citation
Bioprocess and Biosystems Engineering, 2011, 34, 1, pp. 45-56