Division BAT 22 In order to reduce dust and particulate-bound metal emissions to air from the combustion of coal and/or lignite, BAT is to use one or a combination of the techniques given below.
United Kingdom
| Technique | Description | Applicability | |
|---|---|---|---|
| a. | Electrostatic precipitator (ESP) | See description in Section 8.5 | Generally applicable |
| b. | Bag filter | ||
| c. | Boiler sorbent injection (in-furnace or in-bed) | See descriptions in Section 8.5. The techniques are mainly used for SOX, HCl and/or HF control | |
| d. | Dry or semi-dry FGD system | ||
| e. | Wet flue-gas desulphurisation (wet FGD) | See applicability in BAT 21 | |
Table 6
BAT-associated emission levels (BAT-AELs) for dust emissions to air from the combustion of coal and/or lignite
| These BAT-AELs do not apply to plants operated < 1 500 h/yr. | ||||
| For plants operated < 500 h/yr, these levels are indicative. | ||||
| The higher end of the BAT-AEL range is 28 mg/Nm3 for plants put into operation no later than 7 January 2014. | ||||
| The higher end of the BAT-AEL range is 25 mg/Nm3 for plants put into operation no later than 7 January 2014. | ||||
| The higher end of the BAT-AEL range is 12 mg/Nm3 for plants put into operation no later than 7 January 2014. | ||||
| The higher end of the BAT-AEL range is 20 mg/Nm3 for plants put into operation no later than 7 January 2014. | ||||
| The higher end of the BAT-AEL range is 14 mg/Nm3 for plants put into operation no later than 7 January 2014. | ||||
| Combustion plant total rated thermal input(MWth) | BAT-AELs (mg/Nm3) | |||
|---|---|---|---|---|
| Yearly average | Daily average or average over the sampling period | |||
| New plant | Existing plantf1 | New plant | Existing plantf2 | |
| < 100 | 2–5 | 2–18 | 4–16 | 4–22f3 |
| 100–300 | 2–5 | 2–14 | 3–15 | 4–22f4 |
| 300–1 000 | 2–5 | 2–10f5 | 3–10 | 3–11f6 |
| ≥ 1 000 | 2–5 | 2–8 | 3–10 | 3–11f7 |
Annotations
Footnotes
- f1
-
These BAT-AELs do not apply to plants operated < 1 500 h/yr.
- f2
-
For plants operated < 500 h/yr, these levels are indicative.
- f3
-
The higher end of the BAT-AEL range is 28 mg/Nm3 for plants put into operation no later than 7 January 2014.
- f4
-
The higher end of the BAT-AEL range is 25 mg/Nm3 for plants put into operation no later than 7 January 2014.
- f5
-
The higher end of the BAT-AEL range is 12 mg/Nm3 for plants put into operation no later than 7 January 2014.
- f6
-
The higher end of the BAT-AEL range is 20 mg/Nm3 for plants put into operation no later than 7 January 2014.
- f7
-
The higher end of the BAT-AEL range is 14 mg/Nm3 for plants put into operation no later than 7 January 2014.