Heavy Metals Removal from Multicomponents Cation Solution Using Alkaline Activated Fly Ash

Abstract

The study aims to optimize the heavy metals immobilization on fly ash, as a low cost adsorbent. The fly ash is collected directly from the filter of CPHCET Brasov. Batch experiments were conducted at room temperature to evaluate the removal, by adsorption, of Cd2+, Cu2+ and Ni2+ from multi-cations solution. The surface of fly ash was modify by alkaline treatment with NaOH 2N solutions. The adsorption data were described using the Langmuir and Freundlich models. Key words: The study aims to optimize the heavy metals immobilization on fly ash, as a low cost adsorbent. The fly ash is collected directly from the filter of CPHCET Brasov. Batch experiments were conducted at room temperature to evaluate the removal, by adsorption, of Cd2+, Cu2+ and Ni2+ from multi-cations solution. The surface of fly ash was modify by alkaline treatment with NaOH 2N solutions. The adsorption data were described using the Langmuir and Freundlich models.