Division 4.6.2 Emissions to air
United Kingdom
BAT 49. In order to reduce emissions of HCl, HF, dust and organic compounds to air, BAT is to apply BAT 14d and to use one or a combination of the techniques given below.
| Thermal oxidation is carried out with a minimum temperature of 1 100 °C and a two-second residence time for the regeneration of activated carbon used in industrial applications where refractory halogenated or other thermally resistant substances are likely to be present. In the case of activated carbon used for potable water- and food-grade applications, an afterburner with a minimum heating temperature of 850 °C and a two-second residence time is sufficient (see Section 6.1). | ||
| Technique | Description | |
|---|---|---|
| a. | Cyclone | See Section 6.1. The technique is used in combination with further abatement techniques. |
| b. | Electrostatic precipitator (ESP) | See Section 6.1. |
| c. | Fabric filter | |
| d. | Wet scrubbing | |
| e. | Adsorption | |
| f. | Condensation | |
| g. | Thermal oxidationf1 | |
The associated monitoring is given in BAT 8.
Annotations
Footnotes
- f1
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Thermal oxidation is carried out with a minimum temperature of 1 100 °C and a two-second residence time for the regeneration of activated carbon used in industrial applications where refractory halogenated or other thermally resistant substances are likely to be present. In the case of activated carbon used for potable water- and food-grade applications, an afterburner with a minimum heating temperature of 850 °C and a two-second residence time is sufficient (see Section 6.1).