عنوان مقاله [English]
One of the biggest needs facing most societies today is the lack of fresh water. Lack of safe water resources and high costs of treatment plans often prevent communities' access to this vital need. Therefore providing a reliable method that the elimination of industrial pollution, low cost and environmentally is very necessary. This study aimed to investigate the removal of hexavalent chromium from waste water by absorbing roots, stems and leaves of barberry was done. The initial pH, reaction time, absorption weight and initial concentration of chromium was the most important parameters that in this study examined in each adsorbent. The results showed that the removal efficiency of hexavalent chromium by increasing pH and initial chromium concentration decreases, in the event that increase the amount of particulate absorbent and adsorbent contact time with the solution containing chromium ion, removal rate increases and then reaches a state of equilibrium. It was also observed that the absorbent roots of barberry with less than two other absorbent removal rate is higher. Therefore, use of low-cost agricultural waste is very helpful in order to remove the heavy metals chromium and reuse of water for agriculture in the country.