Effective Desalination of Acid Mine Drainage Using an Advanced Oxidation Process: Sodium Ferrate (VI) Salt

The screening and treatment of acid mine drainage (AMD) using Na2FeO4 was explored. Elemental composition performed, an Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) for the raw treated AMD. AMD samples were collected from three different sampling sites:(Raw Tailing Water 1 (RTW1), Raw 2 (RTW2) 3 (RTW3)) in Pretoria, South Africa, with acidic pH ranging between 2.50 3.13. Total dissolved solids electrical conductivity ranged 960 1000 mg L−1, 226 263 µS. cm−1, respectively. final water increased up to ≥9.5 after sodium ferrate (VI) (Na2FeO4). Liquid quantitatively produced through a wet oxidation method fully characterized, Fourier Transform Infra-Red (FTIR), X-ray Diffraction spectroscopy (XRD) UV-Vis instruments. showed dual functions by removing metals raising water. Concentrations most trace elements did not comply WHO DWAF guideline standards while Na2FeO4, concentrations below guidelines domestic irrigation purposes.