Division BAT 97
United Kingdom
In order to reduce dust and metal emissions to air from remelting, refining and casting in primary and secondary lead and/or tin production, BAT is to use the techniques given below.
| Technique | |
|---|---|
| a | For pyrometallurgical processes: maintain the temperature of the melt bath at the lowest possible level according to the process stage in combination with a bag filter |
| b | For hydrometallurgical processes: use a wet scrubber |
BAT-associated emission levels: See Table 25.
Table 25
BAT-associated emission levels for dust and lead emissions to air from remelting, refining and casting in primary and secondary lead and/or tin production
| As a daily average or as an average over the sampling period. | |
| Dust emissions are expected to be towards the lower end of the range when emissions are above the following levels: 1 mg/Nm3 for copper, 1 mg/Nm3 for antimony, 0,05 mg/Nm3 for arsenic, 0,05 mg/Nm3 for cadmium. | |
| As an average over the sampling period. | |
| Parameter | BAT-AEL (mg/Nm3) |
|---|---|
| Dust | 2-4f1 f2 |
| Pb | ≤ 1f3 |
Annotations
Footnotes
- f1
-
As a daily average or as an average over the sampling period.
- f2
-
Dust emissions are expected to be towards the lower end of the range when emissions are above the following levels: 1 mg/Nm3 for copper, 1 mg/Nm3 for antimony, 0,05 mg/Nm3 for arsenic, 0,05 mg/Nm3 for cadmium.
- f3
-
As an average over the sampling period.