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.