International Journal of Applied Science and Engineering Research
  • Year: 2016
  • Volume: 5
  • Issue: 6

Kinetics and retention chromatographic of chromium (VI) sorption from aqueous solution using roasted powder of date pits

  • Author:
  • Hakim Qaid Naji Museed Alarique1,, Elyas Sadeq Al-Aghbari2, Waleed Mohammed Al-Shawafi2, Niyazi Abdulmawla Sallam Al-Areqi2
  • Total Page Count: 16
  • Page Number: 493 to 508

1Department of Chemistry, Faculty of Education, Taiz University, Taiz, Yemen

2Department of Chemistry, Faculty of Applied Sciences, Taiz University, Taiz, Yemen

*Corresponding author (e-mail: hakimalariqe@yahoo.com)

Online published on 16 February, 2018.

Abstract

Adsorption kinetics and chromatographic behavior of Cr(VI) on roasted powder date palm (RPDP) were determined from batch testes. The effects of contact time, Cr(VI) concentrations, polarity, pH and acidity on Cr(VI) uptake were studied. The kinetic of adsorption was explained using pseudo-first order, pseudo-second order and Elovich kinetic models. It was found that the adsorption followed pseudo-first order. The retained Cr(VI) was recovered from RPDP column with HNO3 (3 mol L-1, 10 mL) at 3 mL min-1 flow rate. Good recovery of total Cr (96–100%) was obtained for the analyzed samples.

Keywords

Chromium(VI), adsorption, Roasted powder from date pits