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Title: | Possibility of using by-products of the steelmaking industry for removing lead from aqueous solutions. |
Other Titles: | Posibilidad de usar subproductos de la industria del acero para eliminar plomo de soluciones acuosas. | Authors: | Martín Hernández, María Isabel; López Gómez, Félix Antonio CSIC ORCID CVN ; Alguacil, Francisco José CSIC ORCID | Keywords: | Rolling mill scale Blast furnace sludge Lead Adsorption isotherms Cascarilla de laminación Lodo de horno alto Plomo Isotermas de adsorción |
Issue Date: | 30-Jun-2008 | Publisher: | Consejo Superior de Investigaciones Científicas (España) | Citation: | Revista de Metalurgia 44 (3): 258-264 (2008) | Abstract: | [EN] A study is made of the use of two steelmaking industry by-products (rolling mill scale and blast furnace sludge) as
adsorbent materials for removing Pb2+ ions from aqueous solutions. The adsorption of Pb2+ on these materials has
been studied by the determination of adsorption isotherms. Several variables that affect the process (contact time,
initial lead ion concentration and temperature) were evaluated. The adsorption processes are analysed using the
Langmuir theory. Desorption processes for the metal from loaded by-products were also studied under different
experimental conditions. This paper shows that these industrial residues are effective adsorbents for lead ions in
aqueous solutions within the range of working concentrations. [ES] Se estudia el uso de dos subproductos de la industria del acero (cascarilla de laminación y lodo de horno alto) como materiales adsorbentes para eliminar iones Pb2+ de soluciones acuosas. La adsorción de Pb2+ sobre estos materiales se ha estudiado determinando las isotermas de adsorción. Se evaluaron diferentes variables que afectan al proceso (tiempo de contacto, concentración inicial de iones plomo y temperatura). Los procesos de adsorción se estudian usando la teoría de Langmuir. Los procesos de desorción de los metales también se estudiaron bajo diferentes condiciones experimentales. Este trabajo muestra que estos residuos industriales son adsorbentes efectivos de iones plomo en soluciones acuosas en el rango de las concentraciones de trabajo utilizadas. |
Description: | 7 pages, 3 figures, 4 tables. | Publisher version (URL): | http://dx.doi.org/10.3989/revmetalm.2008.v44.i3.114 | URI: | http://hdl.handle.net/10261/14545 | DOI: | 10.3989/revmetalm.2008.v44.i3.114 | ISSN: | 0034-8570 | E-ISSN: | 1988-4222 |
Appears in Collections: | (CENIM) Artículos |
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