Multi-component Adsorption Isotherms: Review and Modeling Studies

Abstract Adsorption is an important phenomenon widely used for the removal of contaminants. Several drinking water contaminants such as arsenic and fluoride, vanadium chromium, nickel, cadmium cobalt are found to coexist in nature multi-component mixtures water. Hence, modeling adsorption isotherms designing treatment systems has gained importance recently. However, review studies competitive limited. The current paper summarizes twenty-six isotherm models. Also, case several common mechanisms discussed. Furthermore, a analysis four models three commonly two-component systems, i.e., cadmium-nickel, nickel–cobalt, cadmium-cobalt, reported. Extended Langmuir isotherm, Competitive Langmuir–Freundlich Freundlich were applied study Cd, Ni, Co. goodness fit parameters constants estimated these factors influencing adsorption, various single models, their significance, limitations also discussed this article. Highlights • Twenty-six ten single-component compiled Factors affecting applications binary contaminant presented. Graphical