Manganese adsorption from aqueous solutions controlling the pH and type of adsorbent

Authors

  • Yéssica Bendezú Roca National University of the Center of Peru
  • Walter Segundo Fuentes López National University of the Center of Peru
  • Rosalinda Yola Rosado Baldeón National University of the Center of Peru
  • Yuri Luzmeri Vargas Mamani National University of the Center of Peru
  • Arnold David Loarte Vargas National University of the Center of Peru

DOI:

https://doi.org/10.26490/uncp.prospectivauniversitaria.2017.14.699

Keywords:

Adsorption, Manganese, Natural Bentonite, Heavy Metals

Abstract

In this research the adsorption of Mn (II) in aqueous solutions was studied using natural bentonite, sawdust and the mixture of both adsorbents, at pH from 2 to 9. Adsorbents were characterized by XRD, FRX, MEB and adsorption of N2 at 77 K.

Using the adsorbent dosing curves, it was found that the adequate mass for the adsorption process was 20 g/L. The variables in Batch system, at pH of 2 to 9, contact time of 180 min and at room temperature, in aqueous solutions of 18 mg/L of Mn (II) were studied. The adsorption mechanism of the process was studied by the models of Langmuir and Freundlich, finding that the one which best adapted to this process was the that of Freundlich. The highest percentage Mn (II) removal were reached using bentonite as adsorbent and at a pH of 8, achieving a 96 % removal.

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Author Biography

  • Yéssica Bendezú Roca, National University of the Center of Peru

    National University of the Center of Peru

    Faculty of Chemical Engineering

References

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Published

2020-08-08

Issue

Vol. 14 No. 1 (2017): University prospective

Section

Area III - Architecture and Engineering

License

Copyright (c) 2018 Yéssica Bendezú Roca, Walter Segundo Fuentes López, Rosalinda Yola Rosado Baldeón, Yuri Luzmeri Vargas Mamani, Arnold David Loarte Vargas

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How to Cite

Manganese adsorption from aqueous solutions controlling the pH and type of adsorbent. (2020). Prospectiva Universitaria, 14(1), 47-52. https://doi.org/10.26490/uncp.prospectivauniversitaria.2017.14.699

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