A method is proposed for the solvent extraction of contaminants from wastewater within a liquid–liquid spray column utilizing isopropyl ether as a selective solvent. The implementation of the developed method achieves a removal efficiency of 99.5–99.8% for butyl glycol, phenylisopropanol, acetic acid, and acetylacetone. To provide a theoretical description of the process, a computational model has been developed that incorporates the hydrodynamic patterns of countercurrent liquid phases, as well as the mechanisms of interphase mass transfer for each extracted component.
The study presents the structural design of the spray extraction column, alongside the drainage characteristics and flow distribution within the column. The molar volumes of the constituent compounds, which are utilized in calculating the molecular diffusion coefficients, have been determined. Based on the conducted evaluations, rational operating regimes for the equipment have been established, and the flow rates for both the continuous and dispersed phases have been substantiated.