Abstract
Solid waste from sulphuric acid production contains high
concentrations of metals that are harmful if released to
the environment. The purpose of this study was to
evaluate the acid bioleaching of metals from a sample of
pyritic ashes, consisting mainly of hematite. Bioleaching
was tested in shake flasks and continuously stirred tank
reactors (CSTR) inoculated with iron and sulphur
oxidising acidophiles. Solubilisation of metals was
mainly achieved through acid attack due to the formation
of sulphuric acid by sulphur oxidising bacteria.
| Original language | English |
|---|---|
| Pages (from-to) | 520-523 |
| Journal | Advanced Materials Research |
| Volume | 825 |
| DOIs | |
| Publication status | Published - 2013 |
| MoE publication type | A1 Journal article-refereed |
| Event | 20th International Biohydrometallurgy Symposium, IBS 2013 - Antofagasta, Chile Duration: 8 Oct 2013 → 11 Oct 2013 Conference number: 20 |
Keywords
- bioleaching
- pyritic ash
- sulphur oxidation
- waste
