Langmuir, Freundlich and Tamkin Adsorption Isotherms and Kinetics For The Removal Aartichoke Tournefortii Straw From Agricultural Waste

The research, concerned with Chromium (VI) removal from wastewater using magnetic nano composite. Effect of the active carbon nano composite on Chromium (VI) adsorption from water was measured in terms of various parameters such as absorbent dose, Chromium (VI) concentration, pH, contacts time and temperature. Activated carbon magnetic nano composite was made by mixing artichoke tournefortii straw with Fecl₃.6H₂O salt and ethanol then was burned. Our results show that produced nano composite has good magnetic properties, which optimal conditions for the removal of chromium were 50ppm of concentrations chromium (VI), 2-5 acidic pH, 0.03 gm of adsorbent dose and 25°C temperature. adsorption data in the range of pH values (2.03-10.04) using (Cr) concentration of (10ppm-100ppm) in solution were correlated using the liner forms of the Langmuir and Freundlich equations by using available temperatures three (25 room temperature, 35,45) To find the amount of absorbed soluble (Qe) at equilibrium. this research included the study of the adsorption of Chromium was estimated using the method adsorbent quantities spectroscopic device (UV) Type of (Spectrophotometer UV-Visible) (J9Sco-V-530) and the results showed that the adsorption of Chromium follows the Langmuir equation for adsorption at a range of temperatures (25,35,45°C) and the Freundlich equation. At pH5 are the optimum conditions for excellent removal of chromium. The experimental isotherm data were analyzed using Langmuir, Freundlich and Tamkin. Tamkin is found to be the best model to present the equilibrium data. The operating lines were used to calculate the predicted values of the percent removal of chromium from solution using Tamkin isotherm. The purpose of this article is to review rather scattered information on the utilization of Gundelia for the removal of metal ions from waters.