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    • Adsorption of metal ions from fine coal tailings dump waste water using bio-char 

      Fosso-Kankeu, Elvis; Weideman, Reinhardt; Moyakhe, Dumisane; Campbell, Quentin; Waanders, Frans (EARET, 2018)
      Coal mining operations produce large amounts of tailings which contains heavy metals. Heavy metals such as cadmium (Cd) can cause environmental problems. The adsorption capacities of biochars produced from spent coffee ...