Abstract

General contamination of heavy metals in the environment is a major global concern, which has provoked the emergence of phytoremediation technologies for cleaning aquatic environment. The aim of the present study was to make a comparative evolution of the capacity of five native macrophytes namely Lagenandra toxicaria, Hydrilla verticellata, Pistia statotes and Salvinia molesta, Eichornia crassipes to accumulate and remove heavy metals in a laboratory condition the highest accumulator of Pb, Cu, Cd show by plant sample II and the lowest by plat sample V. As with Mm highest accumulation rate is shown by Salvinia molesta and lowest by Lagendra toxicaria. The study further revealed that differences in the up take rate was found depend on the species of plant, heavy metal concentration and the time of interval (24, 48, at 72 at 96 hrs).