Division BAT 149
United Kingdom
In order to reduce the quantities of waste sent for disposal, BAT is to organise operations on site so as to facilitate process residues reuse or, failing that, process residues recycling, including by using one or a combination of the techniques given below.
| Technique | Process | |
|---|---|---|
| a | Recovery of the metal content from slags, filter dust and residues of the wet dedusting system | Doré production |
| b | Recovery of the selenium collected in the wet dedusting system’s off-gases containing volatilised selenium | |
| c | Recovery of silver from spent electrolyte and spent slime washing solutions | Silver electrolytic refining |
| d | Recovery of metals from residues from electrolyte purification (e.g. silver cement, copper carbonate-based residue) | |
| e | Recovery of gold from electrolyte, slimes and solutions from the gold leaching processes | Gold electrolytic refining |
| f | Recovery of metals from spent anodes | Silver or gold electrolytic refining |
| g | Recovery of platinum group metals from platinum group metal-enriched solutions | |
| h | Recovery of metals from the treatment of process end liquors | All processes |