low cost adsorbents and heavy metal ions at different pH.The pH of the slurry was adjusted to a desired value in the range of 2-10 and was agitated in a shaking bath at (25-3c) for 20 min until the pH was stabilized. Then, the nickel, iron and copper ions in the form of CuSo4.5H2O, (NiNo3)2.6H2O were added to the bottles to make initial concentrations of 5-30 mg/l and the bottles were further agitated for 2 or 2.5 h until equilibrium was obtained.The residual concentration of heavy metals was determined by an atomic absorption spectrometer.In addition to adsorption tests, a set of blank tests of low cost were conducted in order to evaluate the removal by metal hydroxide precipitation at various pH's.