Author:Baloyi, MJ; Greben, HADate:May 2006Mine drainage arises from oxidation of pyrites, due to exposure to air and water. Acid mine drainage normally contains high concentrations of sulphate, metals and acidity. These pollutants can be reduced by applying the biological sulphate ...Read more
Author:Maree, JP; Greben, HA; De Beer, MorrisDate:Apr 2004A novel chemical/biological process is described in which sulphate and sulphide are removed simultaneously during biological treatment. Partial sulphate removal is achieved during chemical pre-treatment. In the biological stage sulphate is ...Read more