Division 6.2 Emissions to air
United Kingdom
BAT 26. In order to reduce channelled emissions of organic compounds to air from fish smoking, BAT is to use one or a combination of the techniques given below.
| Technique | Description | |
|---|---|---|
| (a) | Biofilter | The waste gas stream is passed through a bed of organic material (such as peat, heather, root, tree bark, compost, softwood and different kinds of combinations) or some inert material (such as clay, activated carbon, and polyurethane), where organic (and some inorganic) components are transformed by naturally occurring microorganisms into carbon dioxide, water, other metabolites and biomass. |
| (b) | Thermal oxidation | See Section 14.2. |
| (c) | Non-thermal plasma treatment | |
| (d) | Wet scrubber | See Section 14.2. An electrostatic precipitator is commonly used as a pre-treatment step. |
| (e) | Use of purified smoke | Smoke generated from purified primary smoke condensates is used to smoke the product in a smoke chamber. |
Table 11
BAT-associated emission level (BAT-AEL) for channelled TVOC emissions to air from a smoke chamber
| The lower end of the range is typically achieved when using thermal oxidation. | ||
| The BAT-AEL does not apply when the TVOC emission load is below 500 g/h. | ||
| Parameter | Unit | BAT-AEL (average over the sampling period) |
|---|---|---|
| TVOC | mg/Nm3 | 15–50 f1 f2 |
The associated monitoring is given in BAT 5.
Annotations
Footnotes
- f1
-
The lower end of the range is typically achieved when using thermal oxidation.
- f2
-
The BAT-AEL does not apply when the TVOC emission load is below 500 g/h.