Closed-loop recycling of copper from waste printed circuit boards using bioleaching and electrowinning processes

HIGHLIGHTS

• who: Mahsa Baniasadi from the Bioleaching Method The acidophilic bacterium used in this study was Aferrooxidans, from the Acidophile Laboratory Bangor University, Wales, UK. A. ferrooxidans is chemolithoautotroph sulphur and iron-oxidising bacterium, which is able to convert ferrous iron to ferric, so that in turn ferric ions oxidise the base metals available in PCBs and solubilise them in their ionic form. Bacteria were grown in , k medium containing: u00ad(NH4) , ., (g/l), KCl, ., (g/l), K u00ad , ., (g/l), u00adMgSO4u00b7 H O, ., (g/l), Ca(NO3), .01(g/l), F u00ad eSO4u00b7 H O, ., (g/l . . .
  

   

  

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