ABSTRACT
Lake Manzala Engineered Wetland project (LMEWP) is a constructed wetland that has been designed for treating drainagewater coming from Bahr El-Baqar drain. In this study, the concentration of heavy metals (Cu, Zn and Pb) in water, sedimentand different organs of Phragmitesaustralis collected from LMEWP seasonally. The aim of this study was to determine thedynamics of distribution of metals in different parts of phragmitesaustralis, and to determined the bioaccumulation factor(BCF) in different organs of plant phragmitesaustralis and Translocation Factor (TA), particularly to determine the time ofmaximum accumulation in the above-ground tissues and to assess removal capacity of phragmitesaustralis in LMEWP.Results revealed a high significant correlation between heavy metals concentrations in phragmitesaustralis with its locationin LMEWP vegetation cell; start cell> end cell. The highest concentration of metals is mostly found in phragmitesaustralisroot. All metals were accumulated in root over time until the end of the growing season after eight months. On the otherside, metal concentrations in stem and leaves increased even after the growing season of the plant. Overall, the resultssuggest to harvestphragmitesaustralis before six months IN the growing season in order to improve the accumulativeefficiency of phragmitesaustralis in LMEWP project.