Simulation and Modelling of Atratone Herbicide Extraction at the Immiscible Liquid System Using an Electrochemical Reactor

摘要

In the present work, a modeling and mathematical simulation of the extraction of atratone herbicide across the immiscible electrolyte solutions system was studied. As subject of study, it was considered a two phase electrochemical reactor (water/organic solvent) and a constant concentration of atratone in the water input flow during the extraction process. Using the experimental data obtained by cyclic voltammetry at the interface of two immiscible electrolyte solutions, such as transfer formal potential ( △_o~aΦ_i~(o')) and the coefficient diffusion, this latter parameter was evaluated for the atratone in both phases. Finally, a mathematical model was developed to describe the concentration profiles for this compound near the interface (aqueous and organic) and the total transfer across the interface. The suggested model is able to describe the transport behaviour of the herbicide across the interface and the optimums operation parameters were fixed in the model system allowing the extraction of the compound from water to organic phase.