A process model was developed to simulate elemental mercury sorption by activated carbon in three distinct beds, namely a confined, a semi-fluidized, and a fluidized bed. The model involved the coupling of a kinetic model based on the mechanisms of surface equilibrium and external mass transfer, and a material balance model base don the tank-in-series approach. For surface equilibrium, three different equilibrium laws were used in the model, namely the Henry's law, the Langmuir isotherm and the Fruendlich isotherm. Literature mercury sorption data were used to determine the best-fit values of parameters for these equili- Brium expressions.
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