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Mozambican Adsorbents for Zinc (II) Removal in Aqueous Solutions

  • Julio Omar Prieto-GarcíaEmail author
  • Esnaider Rodríguez Suarez
  • Noor Jehan Gulamussen
  • Ángel Mollineda Trujillo
Conference paper

Abstract

The chapter presents a study of the adsorption capacity of zinc ions from aqueous solutions in natural adsorbents (bagasse ash of red variety sugarcane, coconut shell, activated carbon, and bentonite) from Mozambique. As a heavy metal, zinc has maximum allowable concentration in the drinking water of 5 mg/L according to the Mozambican norm. The environmental pollution caused by the discharge of effluents with contents outside the dumping regulations of Mozambique can be reduced by the use of local materials. According to the results of kinetic studies, the models which better adjust were the pseudo-second order which indicate a physical-type adsorption. Bagasse ash of red variety sugarcane presented the higher adsorption capacity while coal had the lower capacity.

Keywords

Adsorbents Zinc Adsorption Kinetic model 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Julio Omar Prieto-García
    • 1
    Email author
  • Esnaider Rodríguez Suarez
    • 2
  • Noor Jehan Gulamussen
    • 2
  • Ángel Mollineda Trujillo
    • 3
  1. 1.Departamento Licenciatura en Química, Facultad de Química y FarmaciaUniversidad Central “Marta Abreu” de las VillasSanta ClaraCuba
  2. 2.Departamento de Química, Faculdade de CienciasUniversidade Eduardo MondlaneMaputoMozambique
  3. 3.Centro de Investigaciones Agropecuarias (CIAP), Facultad de Ciencias AgropecuariasUniversidad Central “Marta Abreu” de las VillasSanta ClaraCuba

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