Division BAT 17
United Kingdom
In order to reduce emissions to water, BAT is to treat the leakages from the storage of liquids and the waste water from non-ferrous metals production, including from the washing stage in the Waelz kiln process, and to remove metals and sulphates by using a combination of the techniques given below.
| Descriptions of the techniques are given in Section 1.10. | ||
| Techniquef1 | Applicability | |
|---|---|---|
| a | Chemical precipitation | Generally applicable |
| b | Sedimentation | Generally applicable |
| c | Filtration | Generally applicable |
| d | Flotation | Generally applicable |
| e | Ultrafiltration | Only applicable to specific streams in non-ferrous metals production |
| f | Activated carbon filtration | Generally applicable |
| g | Reverse osmosis | Only applicable to specific streams in non-ferrous metals production |
Annotations
Footnotes
- f1
-
Descriptions of the techniques are given in Section 1.10.