Using magnetite to fix toxic compounds solubilized from solid residues produced at lead smelting plant

Abstract

Metallurgie waste mainly composed by magnetite (Fe3O4 was studied to be used as adsorber material to fix the metallic ions present as leached and solubilizated products of smelting plant residues deposited at the decommissioned plant called Pane las, located at the Ribeira de Iguape River Basin. The adsorption beds prepared with Magnetite, Bentonite and Ashes (MBC) show 71,4 % of removal percentage for lead ions and 26,9% for zinc ions added in similar initial concentrations with those found for solubilized and leached products, measured from smelting solid residues. The obtained adsorption velocities were similar with those found in the literature for non conventional adsorbers and the equations proposed for the empirical model shows correspondence with the experimental values.