ability of green algaScendesmusdimorphuson the bioaccumulation of some heavy elements and their affects on shapes and contents of their cells

Abstract

AbstractThe study was conducted to know the ability of the green alga Scendesmusdimorphus toaccumulate four heavy elements were copper, lead, cadmium and nickel in four concentrations (5,10, 15 and 20) mg / L for every one and then observed the effects of these elements on the shape ofthe cell and its internal structures by using the scanning electron microscopy technique. The resultswere showing that the copper ion was the least severe effect on the form and content of algae ascompared with the rest of the other elements, while cadmium was the most affect among theelements that were added. The results of the absorption spectrum that the order of absorption ofelements in terms of concentration was cadmium (0.78%) of the dry weight, followed by the copperpercent (0.33%) of the dry weight, the nickel and its concentration (0.18%) of the dry weight whilethe lead element was the least accumulation, Its concentration was ( 0.10%) of dry weight.