Artículos de revistas
Modelling the change in the oxidation coefficient during the aerobic degradation of phenol by acclimated activated sludge
Date
2014-01Registration in:
Lobo, Cintia Cecilia; Bertola, Nora Cristina; Contreras, Edgardo Martin; Modelling the change in the oxidation coefficient during the aerobic degradation of phenol by acclimated activated sludge; Water Research Commission; Water S.a.; 40; 1; 1-2014; 125-131
0378-4738
1816-7950
CONICET Digital
CONICET
Author
Lobo, Cintia Cecilia
Bertola, Nora Cristina
Contreras, Edgardo Martin
Abstract
In this work the aerobic degradation of phenol by acclimated activated sludge was studied. Results demonstrate that while the phenol removal rate by acclimated activated sludge follows the Monod model, the oxygen uptake rate obeys a Haldane-type equation. The phenol oxidation coefficient obtained at different intial phenol concentrations ranged from 1.9 to 2.6 mol O2 · mol-1 phenol. A mathematical model based on a simplified version of the catalytic mechanism of the enzyme phenol 2-monooxygenase was developed to predict transient phenol concentrations and oxygen requirements by phenol-acclimated activated sludge in batch reactors under different initial phenol concentrations. The proposed model not only adequately represents the experimental results of the present paper, but also those reported by other authors. Particular cases of the proposed model are discussed.