Division BAT 176
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 | Applicability | |
|---|---|---|
| a | Use of the granulated slag generated in the electric arc furnace (used in smelting) as an abrasive or construction material | Applicability depends on the metal content of the slag |
| b | Use of the off-gas dust recovered from the electric arc furnace (used in smelting) as a raw material for zinc production | Generally applicable |
| c | Use of the matte granulation off-gas dust recovered from the electric arc furnace (used in smelting) as a raw material for the nickel refinery/re-smelting | Generally applicable |
| d | Use of the sulphur residue obtained after matte filtration in the chlorine-based leaching as a raw material for sulphuric acid production | Generally applicable |
| e | Use of the iron residue obtained after sulphate-based leaching as a feed to the nickel smelter | Applicability depends on the metal content of the waste |
| f | Use of the zinc carbonate residue obtained from the solvent extraction refining as a raw material for zinc production | Applicability depends on the metal content of the waste |
| g | Use of the copper residues obtained after leaching from the sulphate- and chlorine-based leaching as a raw material for copper production | Generally applicable |