Nuclear energy has been proposed as an alternative energy source in the bid to reduce carbon emissions that results from fossil fuel. Hexavalent uranium [U(VI)] is the most abandoned radioactive waste discharged from nuclear ...

Cr(VI) is toxic to biological systems due to its strong oxidizing potential. However, some microorganisms possess mechanisms that enable them to reduce the toxic of chromium [Cr(VI)] to the less toxic trivalent state [Cr(III)] ...

Biological uranium (VI) reduction was investigated using a mixed-culture of U(VI) reducing bacteria isolated from tailing dumps at an abandoned uranium mine in Pharaborwa (Limpopo Province, South Africa). A fixed-film ...