Division 4.4.2 Emissions to air
United Kingdom
BAT 47. In order to reduce emissions of organic compounds to air, BAT is to apply BAT 14d and to use a combination of the techniques given below.
| Technique | Description | Applicability | |
|---|---|---|---|
| a. | Recirculation of process off-gases in a steam boiler | The process off-gases from the condensers are sent to the steam boiler supplying the plant. | May not be applicable to the treatment of halogenated solvent wastes, in order to avoid generating and emitting PCBs and/or PCDD/F. |
| b. | Adsorption | See Section 6.1. | There may be limitations to the applicability of the technique due to safety reasons (e.g. activated carbon beds tend to self-ignite when loaded with ketones). |
| c. | Thermal oxidation | See Section 6.1. | May not be applicable to the treatment of halogenated solvent wastes, in order to avoid generating and emitting PCBs and/or PCDD/F. |
| d. | Condensation or cryogenic condensation | See Section 6.1. | Generally applicable. |
| e. | Wet scrubbing | See Section 6.1. | Generally applicable. |
The BAT-AEL set in Section 4.5 applies.
The associated monitoring is given in BAT 8.