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Alginate and alginate-zeolite beads for removal of cadmium present in water

Published online by Cambridge University Press:  27 October 2020

I. Cosme-Torres ,
M.G. Macedo-Miranda ,
P. Ibarra-Escutia ,
M. Manjarrez-Olvera ,
V. Albíter-López  and
A. Trujillo-Segura
I. Cosme-Torres
Affiliation:
Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Av. Tecnológico s/n, Colonia Agrícola Bellavista, C.P. 52149, Metepec, México.
M.G. Macedo-Miranda*
Affiliation:
Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Av. Tecnológico s/n, Colonia Agrícola Bellavista, C.P. 52149, Metepec, México.
P. Ibarra-Escutia
Affiliation:
Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Av. Tecnológico s/n, Colonia Agrícola Bellavista, C.P. 52149, Metepec, México.
M. Manjarrez-Olvera
Affiliation:
Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Av. Tecnológico s/n, Colonia Agrícola Bellavista, C.P. 52149, Metepec, México.
V. Albíter-López
Affiliation:
Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Av. Tecnológico s/n, Colonia Agrícola Bellavista, C.P. 52149, Metepec, México.
A. Trujillo-Segura
Affiliation:
Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Av. Tecnológico s/n, Colonia Agrícola Bellavista, C.P. 52149, Metepec, México.
*
*[email protected]
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Abstract

The use of ALG beads and ALG-ZEO beads for the removal of Cd2+ was evaluated in a batch system, was determined the effect of pH, kinetics and adsorption isotherm. The characterization was carried out by FTIR, SEM and EDS. The EDS analysis showed that the main elements are C, O and Ca, these are associated with the chemical composition of alginate while the ALG-ZEO bead showed characteristic crystals of the zeolite. Cd2+ adsorption was carried out at pH 6 using ALG beads and ALG-ZEO beads as adsorbent. The suggested mechanism to explain the removal of the Cd2+ ion was is through a chemisorption process. Finally the adsorption process was adjusted to kinetic and isotherm models.

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Articles
Information
MRS Advances , Volume 5 , Issue 62: International Materials Research Congress XXIX , 2020 , pp. 3247 - 3256
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Copyright
Copyright © The Author(s), 2020, published on behalf of Materials Research Society by Cambridge University Press

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