Biosorption of heavy metals on Opuntia fuliginosa and Agave angustifolia fibers for their elimination from water


Por: Flores-Trujillo A.K.I., Mussali-Galante P., de Hoces M.C., Blázquez-García G., Saldarriaga-Noreña H.A., Rodríguez-Solís A., Tovar-Sánchez E., Sánchez-Salinas E., Ortiz-Hernández L.

Ahead of Print: 1 ene 2020
Resumen:
In this work, Opuntia fuliginosa and Agave angustifolia fibers were used as an alternative for the removal of heavy metals from water, through a biosorption process. Both species of plant are widely available in Mexico, particularly A. angustifolia as waste material from the production of tequila. First, both fibers were characterized by scanning electron microscopy/energy-dispersive spectroscopy, Fourier transform infrared spectroscopy, and elemental analysis. The scanning electron microscopy analysis showed structural differences between both fibers; the main chemical elements are carbon and oxygen, in addition to other elements, which allows the existence of functional groups such as hydroxyl, carboxyl, and carbonyl, among others. Subsequently, to test the fibers capacity for the removal of heavy metals from water, batch adsorption experiments were carried out with different particle sizes. O. fuliginosa fibers, with a particle size of 0.572 mm, removed 93% of Pb, followed by Cr, Fe, Cu, Zn, Cd, and Mn. However, for other particle sizes, it was possible to remove up to 90% of the Pb, followed by Cd, Cr, and Zn. In general, lead was adsorbed in a larger proportion compared to all metals studied, regardless of fiber size. In the same way, A. angustifolia fiber efficiently adsorbs Pb, regardless of the particle size, since it also removes up to 90%. According to the Langmuir and Freundlich adsorption isotherms analysis, O. fuliginosa adsorbs heavy metals in the form of multilayer, while A. angustifolia absorbs them through both mechanisms, as monolayer and multilayer. © 2020, Islamic Azad University (IAU).

Filiaciones:
Flores-Trujillo A.K.I.:
 Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001 Col. Chamilpa, Cuernavaca, Mor C.P. 62210, Mexico

Mussali-Galante P.:
 Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001 Col. Chamilpa, Cuernavaca, Mor C.P. 62210, Mexico

de Hoces M.C.:
 Departmento de Ingeniería Química, Universidad de Granada, Granada, Spain

Blázquez-García G.:
 Departmento de Ingeniería Química, Universidad de Granada, Granada, Spain

Saldarriaga-Noreña H.A.:
 Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Mor C. P. 62210, Mexico

Rodríguez-Solís A.:
 Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001 Col. Chamilpa, Cuernavaca, Mor C.P. 62210, Mexico

Tovar-Sánchez E.:
 Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Mor C. P. 62210, Mexico

Sánchez-Salinas E.:
 Misión Sustentabilidad México AC. Priv. Laureles 6, Col. Chamilpa, Cuernavaca, Mor C.P. 62210, Mexico

Ortiz-Hernández L.:
 Misión Sustentabilidad México AC. Priv. Laureles 6, Col. Chamilpa, Cuernavaca, Mor C.P. 62210, Mexico
ISSN: 17351472
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SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, Estados Unidos America
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WOS Id: 000545905900001