Cassava Husk Powder as an Eco-Friendly Adsorbent for the Removal of Nickel (II) Ions

Lisdelys González-Rodríguez, Julio Omar Prieto García, Lien Rodríguez-López, Yoan Hidalgo-Rosa, Manuel A. Treto-Suaréz, Mixary Garcia Enriquez, Ángel Mollineda Trujillo

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Here, the potential of cassava husk powder as a ecofriendly bio-sorbent of nickel (Ni) ions in aqueous media was presented. This bio-material was characterized as sorbent using several physical properties and analytical techniques which displayed a product with adequate properties as bio-sorbent toward Ni (II) ions. The sorption process was studied via six kinetic models and seven thermodynamic models. The kinetic Elovich model and the liquid film diffusion model both provided a high degree of correlation with the experimental data at 45 °C which suggests a chemisorption process. The thermodynamic studied displayed an excellent correlation with the Temkin model which suggests a uniform distribution of binding energies. From these analyses, the activation energy (Ea), the change of the standard Gibbs free energy (ΔG°), the standard enthalpy (ΔH°) and the standard entropy (ΔS°) of the sorption process were estimated using the thermodynamic equilibrium coefficients. This study revealed that Ni (II) ions adsorption process in cassava husk powder was reversible, exothermic, and with strong electrostatic interaction between metal and sorbent surface. The cassava husk powder showed an adsorption capacity of qe (25 °C) = 1.388 mg/g and qe (45 °C) = 1.265 mg/g. The bio-adsorbent is a low-cost alternative and promising green technology for efficient large-scale Ni (II) ions removal from industrial wastewater. It is an affordable technology that could also help reduce pollution in the environment.

Original languageEnglish
Title of host publicationSpringer Proceedings in Earth and Environmental Sciences
PublisherSpringer Nature
Pages21-38
Number of pages18
DOIs
Publication statusPublished - 2022
Externally publishedYes

Publication series

NameSpringer Proceedings in Earth and Environmental Sciences
ISSN (Print)2524-342X
ISSN (Electronic)2524-3438

Keywords

  • Bio-adsortion
  • Cassava husk powder
  • Heavy metal
  • Nickel

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Geophysics
  • Oceanography
  • Environmental Science (miscellaneous)

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