Division BAT 146
United Kingdom
In order to reduce PCDD/F emissions to air from a drying operation where the raw materials contain organic compounds, halogens or other PCDD/F precursors, from an incineration operation, and from a calcining operation, BAT is to use one or a combination of the techniques given below.
| Descriptions of the techniques are given in Section 1.10. | |
| Technique | |
|---|---|
| a | Afterburner or regenerative thermal oxidiserf1 |
| b | Injection of adsorption agent in combination with an efficient dust collection system |
| c | Optimise combustion or process conditions for the abatement of emissions of organic compounds |
| d | Avoid exhaust systems with a high dust build-up for temperatures > 250 °C |
| e | Rapid quenching |
| f | Thermal destruction of PCDD/F in the furnace at high temperatures (> 850 °C) |
| g | Use of oxygen injection in the upper zone of the furnace |
| h | Internal burner system |
BAT-associated emission levels: See Table 45.
Table 45
BAT-associated emission levels for PCDD/F emissions to air from a drying operation where the raw materials contain organic compounds, halogens or other PCDD/F precursors, from an incineration operation, and from a calcining operation
| As an average over a sampling period of at least six hours. | |
| Parameter | BAT-AEL (ng I-TEQ/Nm3)f2 |
|---|---|
| PCDD/F | ≤ 0,1 |
Annotations
Footnotes
- f1
-
Descriptions of the techniques are given in Section 1.10.
- f2
-
As an average over a sampling period of at least six hours.