Division 75
United Kingdom
BAT is to reduce metal 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) Selection of raw materials for the batch formulation with a low content of metals | The technique is generally applicable within the constraints of the type of frit produced at the installation and the availability of raw materials |
| (ii) Minimising of the use of metal compounds in the batch formulation, where colouring is required or other specific characteristics are conferred to the frit | The techniques are generally applicable |
| (iii) Dry or semi-dry scrubbing, in combination with a filtration system | |
Table 65
BAT-AELs for metal emissions from the melting furnace in the frits sector
| The levels refer to the sum of metals present in the flue-gases in both solid and gaseous phases. | ||
| The conversion factor of 7,5 × 10–3 has been used. A case-by-case conversion factor may have to be applied based on the type of combustion (see Table 2). | ||
| Parameter | BAT-AELf2 | |
|---|---|---|
| mg/Nm3 | kg/tonne melted glassf3 | |
| Σ (As, Co, Ni, Cd, Se, CrVI) | < 1 | < 7,5 × 10–3 |
| Σ (As, Co, Ni, Cd, Se, CrVI, Sb, Pb, CrIII, Cu, Mn, V, Sn) | < 5 | < 37 × 10–3 |
Annotations
Footnotes
- f1
-
A description of the techniques is given in Section 1.10.5.
- f2
-
The levels refer to the sum of metals present in the flue-gases in both solid and gaseous phases.
- f3
-
The conversion factor of 7,5 × 10–3 has been used. A case-by-case conversion factor may have to be applied based on the type of combustion (see Table 2).