Removal of iron(II) ions in aqueous medium using a natural Cuban vitreous tuff

Abstract

This study assessed the absorption capacity in removing iron (II) ions in a liquid phase of a Cuban glassy tuff in natural state from Magueyal deposit. Modulated solutions and a liquid residual generated during the chemical cleaning of the internal surfaces of the boilers in the thermoelectric plants were prepared, showing high concentrations of iron(II) ions in its composition. The pseudo second order model was used to determine the kinetics of the process, where Freundlich's isothermal adsorption equation was the best fit, and a maximum adsorption capacity equal to 34.4 mg / g of iron (II) ions was reached.

Keywords

• toba vítrea
• adsorción
• modelo cinético
• isoterma de adsorción
• capacidad de adsorción.