Now showing items 1-2 of 2

    • Leaching of rare earth elements from bentonite clay 

      Van der Watt, J.G.; Waanders, F.B. (The Southern African Institute of Mining and Metallurgy, 2012)
      Due to increasing concerns of global rare earth element shortfalls in the near future, possible alternative sources of rare earth elements have recently become of economic interest. One such alternative is decanting ...
    • The threat of mine effluent to the UNESCO status of the Cradle of Humankind World Heritage Site 

      Durand, J F; Meeuvis, J; Fourie, M (2010)
      There is a significant environmental risk posed to the region in which one of the most important and richest archaeological and palaeontological resources is located in South Africa. This area, known as the Cradle of ...