Posibilidades sobre el uso de residuos de la industria del acero en la eliminación de metales de efluentes líquidos
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 rem...
| Autores: | , , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2004 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositório: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/2783 |
| Acesso em linha: | http://hdl.handle.net/10261/2783 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Cascarilla de laminación Eliminación Metales pesados Cementación Isotermas de Adsorción |
| Resumo: | 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 Cd2+, Zn2+, Pb2+ y Cu2+ 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 oxidationreduction or cementation (Cu2+/Fe). The possibilities of desorption were studied too. |
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