Division 44
United Kingdom
When selenium compounds are used for decolourising the glass, BAT is to reduce selenium emissions from the melting furnace by using one or a combination of the following techniques
| A description of the techniques is given in Section 1.10.5. | |
| Techniquef1 | Applicability |
|---|---|
| (i) Minimising the use of selenium compounds in the batch formulation, through a suitable selection of the raw materials | The applicability may be limited by the constraints imposed by the type of glass produced at the installation and the availability of raw materials |
| (ii) Dry or semi-dry scrubbing, in combination with a filtration system | The technique is generally applicable |
Table 34
BAT-AELs for selenium emissions from the melting furnace in the domestic glass sector when selenium compounds are used for decolourising the glass
| The values refer to the sum of selenium present in the flue-gases in both solid and gaseous phases. | ||
| A conversion factor of 3 × 10–3 has been applied (see Table 2). However, a case-by-case conversion factor may have to be applied for specific productions. | ||
| Parameter | BAT-AELf2 | |
|---|---|---|
| mg/Nm3 | kg/tonne melted glassf3 | |
| Selenium compounds, as Se | < 1 | < 3 × 10–3 |
Annotations
Footnotes
- f1
-
A description of the techniques is given in Section 1.10.5.
- f2
-
The values refer to the sum of selenium present in the flue-gases in both solid and gaseous phases.
- f3
-
A conversion factor of 3 × 10–3 has been applied (see Table 2). However, a case-by-case conversion factor may have to be applied for specific productions.