The removal of toxic metals from liquid effluents by ion exchange resins. Part XII: Mercury(II) /H+/Lewatit SP112
DOI:
https://doi.org/10.3989/revmetalm.160Keywords:
Lewatit SP112, Liquid effluents, Mercury(II), Multiwalled carbon nanotubes, RemovalAbstract
Mercury(II) was eliminated, from acidic aqueous solutions, by the cationic ion exchange resin Lewatit SP112. Various experimental conditions were tested in the investigation, such as, stirring speed (275–1000 min−1), temperature (20–60 °C), pH of the aqueous solution (0–4) and resin dosage (0.05–0.4 g·L−1). Mercury(II) uptake onto the resin decreased with the increase of the temperature (exothermic reaction) in a spontaneous process, whereas the moving boundary model represented the metal uptake in the 20–60 °C temperatures range. Moreover, the experimental data fitted to the second order kinetic model (275 min−1) or the pseudo-second order kinetic model (500–1000 min−1), though maximum metal uptake was not dependent on the stirring speed applied to the system. The experimental results responded well to the Langmuir type-2 isotherm. The Hg(II)-loading ability of Lewatit SP112 was compared against that of other resins and non-functionalized multiwalled carbon nanotubes. Mercury(II) loaded onto the resin can be eluted by means of various eluants, furher, zero valent mercury was yielded from the eluates.
Downloads
References
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 1×8. 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., López, F.A., Rodriguez, O., Martinez-Ramirez, S., Garcia-Diaz, 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 PMid:27085001
Alguacil, F.J. (2017a). The removal of toxic metals from liquid effluents by ion exchange resins. Part IV: chromium(III)/H+/Lewatit SP112. Rev. Metal. 53 (2), e093.
Alguacil, F.J. (2017b). The removal of toxic metals from liquid effluents by ion exchange resins. Part V: nickel(II)/H+/Dowex C400. Rev. Metal. 53 (4), e105.
Alguacil, F.J. (2018a). The removal of toxic metals from liquid effluents by ion exchange resins. Part VI: manganese(II)/H+/Lewatit K2621. Rev. Metal. 54 (2), e116.
Alguacil, F.J. (2018b). The removal of toxic metals from liquid effluents by ion exchange resins. Part VII: manganese(VII)/H+/Amberlite 958. Rev. Metal. 54 (3), e125.
Alguacil, F.J., Escudero, E. (2018). The removal of toxic metals from liquid effluents by ion exchange resins. Part VIII: arsenic(III)/OH-/Dowex 1x8. Rev. Metal. 54 (4), e132.
Alguacil, F.J. (2019a). The removal of toxic metals from liquid effluents by ion exchange resins. Part IX: lead(II)/H+/Amberlite IR-120. Rev. Metal. 55 (1), e138.
Alguacil, F.J. (2019b). The removal of toxic metals from liquid effluents by ion exchange resins. Part X: antimony(III)/H+/Ionac SR7. Rev. Metal. 55 (3), e152.
Alguacil, F.J. (2019c). The removal of toxic metals from liquid effluents by ion exchange resins. Part XI: cobalt(II)/H+/Lewatit TP260. Rev. Metal. 55 (4), e154.
Haghdoost, Gh., Aghaie, H., Monajjemi, M. (2017). Investigation of Langmuir and Freundlich Adsorption Isotherm of Co2+ Ion by Micro Powder of Cedar Leaf. Orient. J. Chem. 33 (3), 1569-1574. https://doi.org/10.13005/ojc/330363
Ho, Y.-S. (2006). Review of second-order models for adsorption systems. J. Hazard. Mater. 136 (3), 681-689. https://doi.org/10.1016/j.jhazmat.2005.12.043 PMid:16460877
Fu, Y., Sun, Y., Chen, Z., Ying, S., Wang, J., Hu, J. (2019). Functionalized magnetic mesoporous silica/poly(m-aminothiophenol) nanocomposite for Hg(II) rapid uptake and high catalytic activity of spent Hg(II) adsorbent. Sci. Total Environ. 691. 664-674. https://doi.org/10.1016/j.scitotenv.2019.07.153 PMid:31325865
López Diaz-Pavon, A., Cerpa, A., Alguacil, F.J. (2014). Processing of indium(III) solutions via ion exchange with Lewatit K-2621 resin. Rev. Metal. 50 (2), e010. https://doi.org/10.3989/revmetalm.010
USGS (2019). Mercury Statistics and Information. Mineral Commodity Summaries, US Geological Survey. (Accesed July 2019) www.usgs.gov/centers/nmic/mercury-statistics-and-information.
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Consejo Superior de Investigaciones Científicas (CSIC)
This work is licensed under a Creative Commons Attribution 4.0 International License.
© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.
