Adsorption and kinetics of cobalt removal with diethylenetriamine chelate resin from aqueous solutions

The development and increase of industrial activities lead to the proliferation of toxic metals in the environment and humans are exposed to these metals. The results of this study are as follows: the optimal pH for the percentage of adsorption was determined to be 8, the amount of adsorbent was 0.04 g, the isotherm of Radoskovich for (XAD-4-DETA) was the most suitable linear regression The maximum adsorption capacity of Dubin was 73.1 mg/g at ambient temperature, the synthetic adsorption model was quasi second order and the type of penetration into the adsorbent cavities was both controlled by the film resistance and increased by the intraparticulate penetration by increasing the ionic strength of the Solution due to the reduction in metal activity in the solution and the formation of complexes with anions present. In real samples because the samples themselves contain ions. The percentage of adsorption for the adsorbent was reduced by approximately 20%.