Mathematical Modelling of Polyacrylamide Adsorption Process

The static adsorption of hydrolysed polyacrylamide on quartz sand has been studied as a function of the concentration of the polymer solution. Two-parametric adsorption models (Langmuir, Freundlich, Temkin) and three-parametric models (Sips and Redlich–Peterson) were used to describe the data obtained. A three-model isotherm was also constructed, where each model is applied for a certain range of concentrations, which showed the best convergence with the experimental data. Among the two- parametric models, the Langmuir model showed the best result. Among the three- parametric models, the Sips model, which better describes adsorption at high concentrations. The data were obtained, which can be useful for further study of adsorption processes and development of new technologies in various industrial fields.