The Adsorption of Cadmium and Zinc Ions from Waste Waters in Agricultural Argilaceous Soils

Irina Pincovschi, Nicoleta Neacsu, Cristina Modrogan, Mircea Stefan
2017 Revista de chimie (Bucuresti)  
The adsorption of cadmium and zinc ions from waste waters in agricultural argilaceaus soils have been studied, using a thermodynamic method in order to put in evidence the influence of adsorption conditions on adsorption degree. The adsorption isotherms, Langmuir and Freundlich, have been used to describe the adsorption equilibrium. The experimental data put in evidence that Cd2+ ions are more adsorbable (about 300 mmol/g) than Zn2+ ones (about 200 mmol/g). The Langmuir isotherms reflect more
more » ... erms reflect more exactly the adsorption process of both Cd2+and Zn2+ ions, being recommended for thermodynamic parameters determination.
doi:10.37358/rc.17.3.5494 fatcat:4y2du5g6fzanfkormwyvg4dneu