The removal of toxic metals from liquid effluents by ion exchange resins. Part IV: Chromium(III)/H+/Lewatit SP112
Keywords:Chromium(III), Lewatit SP112, Liquid effluents, Removal
This investigation presented results on the removal of chromium(III), from aqueous solution in the 0-5 pH range, using Lewatit SP112 cationic exchange resin. Several aspects affecting the ion exchange process were evaluated, including: the influence of the stirring speed, temperature, pH of the solution, resin dosage and aqueous ionic strength. The selectivity of the system was tested against the presence of other metals in the aqueous solution, whereas the removal of chromium(III) from solutions was compared with results obtained using multiwalled carbon nanotubes as adsorbents. From the batch experimental data, best fit of the results is obtained with the Langmuir model, whereas the ion exchange process is best explained by the pseudo-second order model, moreover, experimental data responded well to the film-diffusion controlled model. Elution of the chromium(III) loaded into the resin is well accomplished by the use of sodium hydroxide solutions.
Alguacil, F.J., Coedo, A.G., Dorado, T., Padilla, I. (2002). The removal of toxic metals from liquid effluents by ion exchange resins. Part I: chromium(VI)/sulphate/Dowex 1x8. Rev. Metal. 38 (4), 306–311. https://doi.org/10.3989/revmetalm.2002.v38.i4.412
Alguacil, F.J. (2002). The removal of toxic metals from liquid effluents by ion exchange resins. Part II: cadmium(II)/sulphate/Lewatit TP260. Rev. Metal. 38 (5), 348–352. https://doi.org/10.3989/revmetalm.2002.v38.i5.418
Alguacil, F.J. (2003). The removal of toxic metals from liquid effluents by ion exchange resins. Part III: copper(II)/sulphate/Amberlite 200. Rev. Metal. 39 (3), 205–209. https://doi.org/10.3989/revmetalm.2003.v39.i3.330
Alguacil, F.J., García-Díaz, I., López, F.A. (2012). The removal of chromium (III) from aqueous solutions by ion exchange on Amberlite 200 resin: batch and continuous ion exchange modelling. Desalin. Water Treat. 45 (1–3), 55–60. https://doi.org/10.1080/19443994.2012.692009
Alguacil, F.J., García-Díaz, I., López, F.A. (2013). Modeling of facilitated transport of Cr(III) using (RNH3+HSO4-) ionic liquid and pseudo-emulsion hollow fiber strip dispersion (PEHFSD) technology. J. Ind. Eng. Chem. 19 (4), 1086–1091. https://doi.org/10.1016/j.jiec.2012.12.003
Alguacil, F.J., López, F.A., Rodriguez, O., Martinez-Ramirez, S., García-Díaz, I. (2016). Sorption of indium (III) onto carbon nanotubes. Ecotox. Environ. Safe. 130, 81–86. https://doi.org/10.1016/j.ecoenv.2016.04.008
USEPA (2016). Standards for drinking waters. www.epa.gov (checked 2 november 2016).
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