Heavy metal removal from aqueous solutions by adsorption using montmorillonite

Gode F.

ASIAN JOURNAL OF CHEMISTRY, vol.19, no.3, pp.2211-2224, 2007 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 3
  • Publication Date: 2007
  • Doi Number: 10.1016/j.watres.2007.01.053
  • Journal Name: ASIAN JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2211-2224
  • Süleyman Demirel University Affiliated: Yes

Abstract

Removal of Cu(II), Zn(II), Cd(II) and Cr(III) from aqueous solutions by sorption on the clay from south west region of Anatolia was investigated. Experiments were carried out as a function of solution pH (2-8), initial solute concentration (1 x 10(-4) -1 x 10(-3) mol/L), temperature (20-65 degrees C), amount of adsorbent dosage (0.1-0.9 g) and time (5-2880 min) by batch process. Sorption characteristics of montmorillonite were evaluated by using Freundlich, Langmuir and Dubinin-Radushkevisch (D-R) adsorption isotherms. X-Ray diffraction, FTIR, SEM and elemental analysis were performed for characterization of clay. Concentrations of heavy metals in solution are determined by flame atomic absorption spectrometry.