Removal of Lead Ions from Polluted Water Using Plantago major L. and Phaseolus vulgaris L

This study focuses on lead detoxification using roots, stems, leaves and whole plants of Plantago major L. and Phaseolus vulgaris L. (decoration kidney bean) as a ball hanging hydroponically in deionized water supplemented with concentrations of lead ion under different duration times and temperatures regimes. Roots of studied plants showed that the highest removal of lead than other parts, while using a mixture of whole plants were more efficient than using each one alone. The largest amounts of lead 85, 77 and 71 % were accumulated in roots of P. major + P. vulgaris, P. major alone and P. vulgaris alone, respectively. The highest rate of Pb ions uptake from the medium took place during the first 2-days of incubation and after 5-days of incubation, lead content in the medium decreased by half. This study suggested that roots of P. major + P. vulgaris could be used removal of pollutants from water contaminated with lead.