Phytoextraction of heavy metals by two sorghum spices in treated soil using black tea residue for cleaning-uo the contaminated soil

Abstract

In order to investigate the effect of adding black tea leaves residue to contaminated soil due to enhance accumulating potential of heavy metals by sorghum spice an experiment was carried out. The contaminated soil by heavy metals mixed by remaining infusion of black tea (8:1). Sorghum Bicolor and halepence were cultivated into the research soil study. Results showed that S. Halepence transition factors for all heavy metals in treated soil were higher than one and as expected the heavy metal uptake rate by S. Bicolor plant is significantly affected by tea leaves added to soil of plant cultivated.