| Solid Mineral Waste | Bioleached Metals |
| Battery | Li, Cd, Co, Ni |
| Ashes | Zn, Al, Cd, Cu, Ni, Cr, Pb, Mn, Fe |
| Tannery | Cr |
| Sludge | Cu, Ni, Zn, Cr |
| Used cracking andhydroprocessing catalysts | Al, Ni, Mo, V, Sb |
| Steel and copper slag | Zn, Fe, Cu, Ni |
| Jewellery waste, automobile catalysts | Ag, Au, Pt |
| Wires | Cd, Cu |
| WEEE | As, Cu, Ni, Al, Zn |