TY - JFULL AU - Munther I. Kandah and Fahmi A. Abu Al-Rub and Lucy Bawarish and Mira Bawarish and Hiba Al-Tamimi and Reem Khalil and Raja'a Sa and ada PY - 2010/3/ TI - Adsorption of Cadmium onto Activated and Non-Activated Date Pits T2 - International Journal of Chemical and Molecular Engineering SP - 175 EP - 180 VL - 4 SN - 1307-6892 UR - https://publications.waset.org/pdf/14307 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 38, 2010 N2 - In this project cadmium ions were adsorbed from aqueous solutions onto either date pits; a cheap agricultural and nontoxic material, or chemically activated carbon prepared from date pits using phosphoric acid. A series of experiments were conducted in a batch adsorption technique to assess the feasibility of using the prepared adsorbents. The effects of the process variables such as initial cadmium ions concentration, contact time, solution pH and adsorbent dose on the adsorption capacity of both adsorbents were studied. The experimental data were tested using different isotherm models such as Langmuir, Freundlich, Tempkin and Dubinin- Radushkevich. The results showed that although the equilibrium data could be described by all models used, Langmuir model gave slightly better results when using activated carbon while Freundlich model, gave better results with date pits. ER -