1. Competitive adsorption of toxic metals on bentonite and use of chitosan as flocculent coagulant to speed up the settling of generated clay suspensions.
- Author
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Ferhat M, Kadouche S, Drouiche N, Messaoudi K, Messaoudi B, and Lounici H
- Subjects
- Adsorption, Aluminum Silicates chemistry, Cations, Clay, Copper chemistry, Copper toxicity, Flocculation, Hydrogen-Ion Concentration, Kinetics, Models, Theoretical, Suspensions, Thermodynamics, Water Pollutants, Chemical chemistry, Water Pollutants, Chemical toxicity, Water Purification methods, Zinc chemistry, Zinc toxicity, Aluminum Silicates analysis, Bentonite chemistry, Chitosan chemistry, Copper analysis, Water Pollutants, Chemical analysis, Zinc analysis
- Abstract
Evaluation of modified Algerian clay as mineral adsorbent was done for its adsorbing capacity on copper (Cu) and Zinc (Zn) cations. The results obtained show a rapid kinetic adsorption for both metals (less than 2 h) following the pseudo-second order model with high elimination rates of 67.2 and 61.8% for Cu and Zn respectively. The adsorption isotherms analyzed with Langmuir model revealed a correlation with the experimental values. While the use of obtained chitosan at room temperature, as flocculent coagulant, accelerates the decantation of the colloidal particles in suspension generated after adsorption process., (Copyright © 2016 Elsevier Ltd. All rights reserved.)
- Published
- 2016
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