Phytoremediation of Pb by macroalgae chara

Environmental pollution with heavy metals is one of the problems we faced it. Pb is one of the pollutant materials for underground and surface water. In recentyears، absorbtion of Pb was demonstrated by hydrophyte plants. The aim of this investigation is to identify، the role of Chara from Charophyta division for decreasing Pb rate of surface water. In order to، four reactors were used for this experiment in which the concentration of Pb. were selected 0. 25، 0. 5، 1، 2 (ppm). Besides، measuring the rate of Pb in water، the plants weight was calculated too. Finally، maximum percent of Pb absorption by Chara was related to water with 0. 25 ppm Pb.