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Rem: Revista Escola de Minas

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MANSUR, Marcelo Borges. Solvent extraction for metal and water recovery from industrial wastes and effluents. Rem: Rev. Esc. Minas [online]. 2011, vol.64, n.1, pp.51-55. ISSN 0370-4467.

The use of solvent extraction to recover metals and water from industrial residues is highlighted in this work. The method was applied (1) to selectively concentrate Zn from effluents generated by the zinc industry, (2) to separate Zn and Fe from spent pickling effluents produced by the hot-dip galvanizing industry, and (3) to recover Co and Ni from spent batteries. Batch and pilot scale data was used to point out solvent extraction as a feasible method to reuse both metals and water thus resulting in energy savings with reducing environmental impacts, minimizing costs required to transport hazardous materials to waste sites, to replace the discharged wastewater and to produce the raw material that would be previously discharged as wastes.

Keywords : Solvent extraction; metal recovery; environmental.

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