| Radionuclides and Toxic Elements Contamination during the Mining and Processing of Ore and Waste Samples |
| Paper ID : 1028-ICEE (R3) |
| Authors: |
|
Sameh E. El-Dabour1, Nareman M. Harpy1, Mahmoud R. Khattab *2 1Nuclear Materials Authority, P.O. Box-530 Maadi, Cairo, Egypt 2Geochemical Exploration Department, Nuclear Materials Authority |
| Abstract: |
| The uraniferous ore and waste samples were collected from Um Bogma Formation and waste accumulation site at Allouga locality. It lies between longitudes 33˚ 20' and 33˚ 26' E and latitudes 29˚ 06' and 29˚ 12' N. Uranium average contents reach up to 1929 and 167.09 ppm in ore and waste samples, respectively, which were higher than that recorded worldwide. From the activity concentration averages of the radionuclides 226Ra, 214Pb, 214Bi, 210Pb, 234U, 230Th, 238U, 40K, and 232Th gradually are the most contributed radionuclides from the studied tailing waste to the surrounding environment. Heavy metals concentrations in original and waste samples are exceeding the permissible limits in Pb and Co compared with WHO, FAO and Ewers U standards while they are higher than the standard in the original ore sample only for Cd and Ni. Cr, Mn, Fe, As and Cu contents were higher than the permissible values in the ore and waste samples where Ni was lower than the standards in Compared with worldwide standards. |
| Keywords: |
| Ore, waste, radionuclides, activity concentrations, toxic elements |
| Status : Paper Accepted |
