Division 31
United Kingdom
BAT is to reduce emissions to air from the downstream processes by using one or a combination of the following techniques:
| A description of the secondary treatment systems is given in Sections 1.10.3 and 1.10.6. | |
| Techniquef1 | Applicability |
|---|---|
| (i) Minimising the losses of coating products applied to the flat glass by ensuring a good sealing of the application system | The techniques are generally applicable |
| (ii) Minimising the losses of SO2 from the annealing lehr, by operating the control system in an optimum manner | |
| (iii) Combining the SO2 emissions from the lehr with the waste gas from the melting furnace, when technically feasible, and where a secondary treatment system is applied (filter and dry or semi-dry scrubber) | |
| (iv) Applying a secondary technique, e.g. wet scrubbing, or dry scrubbing and filtration | The techniques are generally applicable. The selection of the technique and its performance will depend on the inlet waste gas composition |
Table 21
BAT-AELs for air emissions from downstream processes in the flat glass sector, when treated separately
| Parameter | BAT-AEL |
|---|---|
| mg/Nm3 | |
| Dust | < 15 – 20 |
| Hydrogen chloride, expressed as HCl | < 10 |
| Hydrogen fluoride, expressed as HF | < 1 – 5 |
| SOX, expressed as SO2 | < 200 |
| Σ (As, Co, Ni, Cd, Se, CrVI) | < 1 |
| Σ (As, Co, Ni, Cd, Se, CrVI, Sb, Pb, CrIII, Cu, Mn, V, Sn) | < 5 |
Annotations
Footnotes
- f1
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A description of the secondary treatment systems is given in Sections 1.10.3 and 1.10.6.