The kinetics of sorption from a solution onto an adsorbent has been explored theoretically. The general analytical solution was obtained for two cases. It has been shown that at high initial concentration of solute (sorbate) the general equation converts to a pseudo-first-order model and at lower initial concentration of solute it converts to a pseudo-second-order model. In other words, the sorption process obeys pseudo-first-order kinetics at high initial concentration of solute, while it obeys pseudo-second-order kinetics model at lower initial concentration of solute. The theoretical results (derived equations) show that the observed rate constants of pseudo-first-order and pseudo-second-order models are combinations of adsorption and desorption rate constants and also initial concentration of solute. The obtained theoretical equations are used to correlate experimental data for sorption kinetics of some solutes on various sorbents. The predictions of the theory are in excellent agreement with the experimental data.

Kinetic models of sorption: a theoretical analysis.

Application of biosorption for the removal of organic pollutants: a review

Bacterial biosorbents and biosorption

Biosorption of phenol by immobilized activated sludge in a continuous packed bed: prediction of breakthrough curves

Adsorption kinetic models: Physical meanings, applications, and solving methods.

Heterogeneous Ion Exchange in a Flowing System

A Study of the Solubility of Strong Electrolytes in Concentrated Solutions

The Molal Electrode Potential of the Silver-Silver Chloride Electrode in Methyl Alcohol-Water Mixtures

Kinetics of the Iodide-catalyzed Reaction between Cerium(IV) and Arsenic(III)1

Rates of Water Oxidation in Ceric Perchlorate Solutions

Henry C. Thomas

Papers

Heterogeneous Ion Exchange in a Flowing System

A Study of the Solubility of Strong Electrolytes in Concentrated Solutions

The Molal Electrode Potential of the Silver-Silver Chloride Electrode in Methyl Alcohol-Water Mixtures

Kinetics of the Iodide-catalyzed Reaction between Cerium(IV) and Arsenic(III)1

Rates of Water Oxidation in Ceric Perchlorate Solutions