University Publications

The present study was carried out to evaluate the potentials value of three Sudanese plants namely: Zea mays, Calotropis procera and Prosopis chilensis for phytoremediation of six heavy metals from Khartoum tannery waste water using two types of wastewater (W1 and W2) at five concentrations (0.0%, 25.0, 50.0, 75.0 and 100.0) percentage. Plants were tested for heavy metal accumulation using X-ray fluorescence machine. The results obtained are: For Chromium: Zea mays plant showed highest accumulation rate when treated with the W1 at concentration 100 with the accumulation rate as 3782.32. Manganese: The highest absorption rate of manganese obtained by Zea mays treated with the W1 at concentration 50 with an accumulation rate as (2937). For Iron: The highest accumulation rate was achieved by Calotropis prosera plant when treated with the W2 at concentration 100 with an accumulation rate as (240.2). For Cobalt: Zea mays plant treated with the W1 at concentration 50 showed the highest accumulation average as (177.7), followed by the Calotropis procera plant treated with W2 at concentration 25 with rate percentage (177.6). On the other hand the Prosopis chilensis plant showed a low accumulation rate than the control with all treatments except when treated with the W1 at concentration 25 as (134.4) average. For Nickel: Calotropis procera with W2 exhibited an increase over the control to Ni content at all concentration with a maximum absorption at 50% for with (220) rate. For Copper: The highest copper accumulation rate was obtained by Prosopis chilensis when treated with W1 at concentration 50 with an accumulation rate as (124.9). So due to the results of this study there is variation in heavy metals accumulation depend on plant species, type and concentration of polluted water.