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The removal of toxic metals from liquid effluents by ion exchange resins. Part V: Nickel(II)/H+/Dowex C400

AuthorsAlguacil, Francisco José
KeywordsMultiwalled carbon nanotubes
Liquid effluents
Dowex C400
Issue Date2017
PublisherEditorial CSIC
CitationRevista de Metalurgia 53 (4): e105 (2017)
AbstractThe cationic exchange resin Dowex C400 was used to remove nickel(II) from aqueous solutions of different pH values and under various experimental conditions: stirring speed of the aqueous solution/resin system, temperature, resin dosage and aqueous ionic strength. The selectivity of the resin was investigated against the presence of various metals in the aqueous solution, and the removal of nickel(II) from aqueous solutions was also compared with results obtained using multiwalled carbon nanotubes or functionalized (carboxylic groups) multiwalled carbon nanotubes as adsorbents. According to batch experimental data, best fit of the results is obtained with the Freundlich model, whereas the ion exchange process is best explained by the pseudofirst order model. Experimental data fit well to the moving boundary controlled model. Elution of the nickel(II) loaded onto Dowex C400 resin is fully possible using acidic solutions.
Publisher version (URL)https://doi.org/10.3989/revmetalm.105
Identifiersdoi: 10.3989/revmetalm.105
issn: 1988-4222
Appears in Collections:(CENIM) Artículos
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