STOCHASTIC MODELING OF MULTICOMPONENT ADSORPTION-KINETICS WITH NONLINEAR ISOTHERM

A Markov process coupled with the Langmuir adsorption isotherm is deve loped to simulate bisolute adsorption kinetics. Estimates of all model parameters were obtained from a single-solute experiment for the adso rption of 1,1,1-trichloroethane (TCEA) and trichloroethylene (TCE) fro m dilute aqueous solutions onto granular activated carbon (GAC). The m odel verifications indicate that the representation of the rate mechan isms are adequate. The solution of the resultant model equations, whic h are ordinary differential equations, is simpler than the solution of the partial differential equations involved in the deterministic form ulations. This model approach can be extended for the modeling of mult icomponent adsorption in fixed-beds. Copyright (C) 1996 IAWQ. Publishe d by Elsevier Science Ltd.