Adsorption of Hexavalent Chromium from Acidic Solutions using Coriander Leaves Powder

Discharges of industrial effluents containing hazardous heavy metals are increasingly polluting our environment. It is therefore essential to propose the best suited treatment method to eliminate and/or recover them. This work aimed at investigating the potential of coriander leaves powder as abundant and low cost  biosorbent to  remove  hexavalent chromium from acidic solutions.  Effects  pH, contact time, biosorbent dose, initial Cr(VI) concentration were  studied. The kinetics study showed that the maximum adsorption (100%) was reached after 120 min at  pH 2. The results of this study showed  that the coriander leaves powder is an efficient sorbent for  the removal of Cr(VI) and is more economical when compared with commercial adsorbents.