Resumo

SANCHEZ-NAVA, D. M.; LOPEZ-GONZALEZ, H.; OLGUIN, M. T.  e  BULBULIAN, S.. Nickel (II) sorption from aqueous media by Agave salmiana as biosorbent. J. appl. res. technol [online]. 2019, vol.17, n.3, pp.186-194.  Epub 16-Abr-2020. ISSN 2448-6736.

In this work, the removal of nickel from aqueous solutions by Agave salmiana was investigated. For this purpose the removal of this heavy metal (Ni2+) was carried out in a batch system as a function of contact time, pH, and the initial concentration of the metallic specie in solution. The sorption data were fitted to pseudo-first order and pseudo-second order kinetic models to found the parameters which describe the processes. It was found that the maximum sorption of the Agave for Ni2+ was at pH 10 and pseudo-second order kinetic model well described the biosorption behavior of this heavy metal by the non-living biomass. Furthermore, the maximum sorption capacity obtained from the isotherm was 10 mgNi/gAgave.

Palavras-chave : Agave salmiana; sorption; nickel.