Author: Dustov, Aziz Yusufovich; Shukrullayev, Doniyor Dilshodovich; Togʻayev, Hasan Abdivohid oʻgʻli

Annotation: The article studies static regularities of petroleum-product adsorption on local organobentonite. Langmuir, Freundlich and Temkin isotherm models, pseudo-first and pseudo-second order kinetic models and thermodynamic parameters (ΔG°, ΔH°, ΔS°) were determined. The Langmuir maximum capacity is 95 mg/g; the process follows pseudo-second order (R² = 0.995) and is endothermic (ΔH° = +14.2 kJ/mol).

Keywords: adsorption, isotherm, Langmuir, Freundlich, kinetics, pseudo-second order, thermodynamics, organobentonite.

Pages in journal: 456 - 461