Investigation of ng the Potential of cadmium Cadmium Iions Rremoval from Aqueous Solutions with using Date-palm Leaf Ash

Annually large amount of date-palm leafs are produced as waste products of agriculture are produced in Iran. In this study, the potential of date-palm leaf ashes as an inexpensive adsorbent for Cd (II) removal from aqueous solutions has been usedwas investigated. The studied vvariables were as pH (2-7), Cd (II) ion concentrations (50 – 350 mg/l), and adsorbent dose (0.1 – 14 g/l) in batch systems. The optimum pH for the removal of Cd (II) ions was equal to 4. IExperiments for investigate of the effect of adsorbent dose showed that the removal efficiency increased with the increasing increase of adsorbent dose from 0.1 to 11g/l the removal efficiency increased and after thatafter that the, removal efficiency was stabled with the increasing increase of adsorbent dose, removal efficiency was stabled. The removal efficiency reached the highest value at 60 minutes in 100 mg/l Cd(II) concentration was highest value. According to the results, optimum conditions for desirable Cd(II) removal efficiency of 92.36% was obtained Cd(II) in pH 4, adsorbent dose of 11g/l and Cd(II) ions concentration of 100 mg/l. was obtained 92.36%. This study concluded indicated that, date-palm leaf ashes, have a good potential, as an adsorbent, to remove the toxic heavy metals like including cadmium from aqueous solutions.