Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Examination of an Algerian Clay in the Retention of Zinc Ions Charged in Brackish Water

  • Fadel, Ammar (Department of industrial Chemical, University of Biskra) ;
  • Nacef, Saci (Laboratory of Chemical Process Engineering (LGPC), Department of Chemical Engineering, Ferhat Abbas University of Setif)
  • Received : 2017.04.10
  • Accepted : 2017.06.14
  • Published : 2017.10.01
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Abstract

We studied the removal of zinc ions from synthetic brackish water by an adsorption method using natural Algerian Bentonite (NAB). The effect of the main physico chemical parameters-contact time, pH, temperature, ionic strength, clay weight and initial metal ion concentrations on the removal of $Zn^{+2}$-were investigated. The results showed that equilibrium was attained within 10 min of stirring time. The retention capacity of $Zn^{+2}$ increased with the increase of pH, the adsorbent dose and ionic strength. A modelization study showed that the adsorption follows Langmuir isotherm, while its kinetics was pseudo-second-order. Based on the results, it was concluded that NAB, which is natural and available, could be used as an alternative for the removal of zinc from saline aqueous solutions.

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References

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