Posibilidades sobre el uso de residuos de la industria del acero en la eliminación de metales de efluentes líquidos

M. I. Martín; F. A. López; A. López-Delgado; C. Pérez; F. J. Alguacil

doi:10.3989/revmetalm.2004.v40.i5.282

Possibilities of using steelmaking industry residues in the removal of metals from liquid effluents

Authors

M. I. Martín Centro Nacional de Investigaciones Metalúrgicas (CENIM)
F. A. López Centro Nacional de Investigaciones Metalúrgicas (CENIM)
A. López-Delgado Centro Nacional de Investigaciones Metalúrgicas (CENIM)
C. Pérez Centro Nacional de Investigaciones Metalúrgicas (CENIM)
F. J. Alguacil Centro Nacional de Investigaciones Metalúrgicas (CENIM)

DOI:

https://doi.org/10.3989/revmetalm.2004.v40.i5.282

Keywords:

rolling mill scale, removal, heavy metals, cementation, adsorption isotherms

Abstract

A study is made of the removal of metals present in aqueous effluents using a residue of the steelmaking industry denominated rolling mill scale. Mill scale can be considered a cheap material for the removal of toxic metals due to its high content in iron oxides and metallic iron. A study of the removal of Cd₊₂, Zn₊₂, Pb₊₂ y Cu₊₂ ions from aqueous solutions was made, studying several variables that affect the process. The removal of cadmium, zinc and lead corresponding to a superficial adsorption process, was evaluated using the theories of Langmuir and Freundlich. The removal of copper occurs through a process of oxidation-reduction or cementation (Cu₊₂/Fe₀). The possibilities of desorption were studied too.

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Published

2004-10-30

How to Cite

Martín, M. I., López, F. A., López-Delgado, A., Pérez, C., & Alguacil, F. J. (2004). Possibilities of using steelmaking industry residues in the removal of metals from liquid effluents. Revista De Metalurgia, 40(5), 324–328. https://doi.org/10.3989/revmetalm.2004.v40.i5.282

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Issue

Vol. 40 No. 5 (2004)

Section

Articles

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