Commission Implementing Decision (EU) 2016/1032Show full title

1.9.1. Air emissions U.K.

1.9.1.1. Diffuse emissions U.K.

BAT 177. In order to reduce diffuse PAH emissions to air from the storage, handling and transport of liquid pitch, BAT is to use one or a combination of the techniques given below. U.K.

	Technique
a	Back-venting of the liquid pitch storage tank
b	Condensation by external and/or internal cooling with air and/or water systems (e.g. conditioning towers), followed by filtration techniques (adsorption scrubbers or ESP)
c	Collection and transfer of collected off-gases to abatement techniques (dry scrubber or thermal oxidiser/regenerative thermal oxidiser) available at other stages of the process (e.g. mixing and shaping or baking)

1.9.1.2. Dust and PAH emissions U.K.

BAT 178. In order to reduce dust emissions to air from the storage, handling and transportation of coke and pitch, and mechanical processes (such as grinding) and graphitising and machining, BAT is to use a bag filter. U.K.

BAT-associated emission levels: See Table 51.

Table 51

BAT-associated emission levels for dust and BaP (as an indicator of PAH) emissions to air from the storage, handling and transportation of coke and pitch, and mechanical processes (such as grinding) and graphitising and machining

a As an average over the sampling period.
b BaP particles are only expected if processing solid pitch.
Parameter	BAT-AEL (mg/Nm3)a
Dust	2-5
BaP	≤ 0,01b

The associated monitoring is in BAT 10.

BAT 179. In order to reduce dust and PAH emissions to air from the production of green paste and green shapes, BAT is to use one or a combination of the techniques given below. U.K.

a Descriptions of the techniques are given in Section 1.10.
	Techniquea
a	Dry scrubber using coke as the adsorbent agent and with or without precooling, followed by a bag filter
b	Coke filter
c	Regenerative thermal oxidiser
d	Thermal oxidiser

BAT-associated emission levels: See Table 52.

Table 52

BAT-associated emission levels for dust and BaP (as an indicator of PAH) emissions to air from the production of green paste and green shapes

a As an average over the sampling period.
b The lower end of the range is associated with the use of a dry scrubber using coke as the adsorbent agent followed by a bag filter. The upper end of the range is associated with the use of a thermal oxidiser.
Parameter	BAT-AEL (mg/Nm3)a
Dust	2-10b
BaP	0,001-0,01

The associated monitoring is in BAT 10.

BAT 180. In order to reduce dust and PAH emissions to air from baking, BAT is to use one or a combination of the techniques given below. U.K.

a Descriptions of the techniques are given in Section 1.10.
	Techniquea	Applicability
a	ESP, in combination with a thermal oxidation step (e.g. regenerative thermal oxidiser) when highly volatile compounds are expected	Generally applicable
b	Regenerative thermal oxidiser, in combination with a pretreatment (e.g. ESP) in cases of a high dust content in the exhaust gas	Generally applicable
c	Thermal oxidiser	Not applicable to continuous ring furnaces

BAT-associated emission levels: See Table 53.

Table 53

BAT-associated emission levels for dust and BaP (as an indicator of PAH) emissions to air from baking and rebaking

a As an average over the sampling period.
b The lower end of the range is associated with the use of a combination of an ESP and a regenerative thermal oxidiser. The higher end of the range is associated with the use of a thermal oxidiser.
c The lower end of the range is associated with the use of a thermal oxidiser. The upper end of the range is associated with the use of a combination of an ESP and a regenerative thermal oxidiser.
d For cathode production, the upper end of the range is 0,05 mg/Nm3.
Parameter	BAT-AEL (mg/Nm3)a
Dust	2-10b
BaP	0,005-0,015c d

The associated monitoring is in BAT 10.

BAT 181. In order to reduce dust and PAH emissions to air from impregnation, BAT is to use one or a combination of the techniques given below. U.K.

a Descriptions of the techniques are given in Section 1.10.
	Techniquea
a	Dry scrubber followed by a bag filter
b	Coke filter
c	Thermal oxidiser

BAT-associated emission levels: See Table 54.

Table 54

BAT-associated emission levels for dust and BaP (as an indicator of PAH) emissions to air from impregnation

a As an average over the sampling period.
Parameter	BAT-AEL (mg/Nm3)a
Dust	2-10
BaP	0,001-0,01

The associated monitoring is in BAT 10.

1.9.1.3. Sulphur dioxide emissions U.K.

BAT 182. In order to reduce SO₂ emissions to air when there is a sulphur addition in the process, BAT is to use a dry and/or wet scrubber. U.K.

1.9.1.4. Organic compound emissions U.K.

BAT 183. In order to reduce emissions of organic compounds to air, including phenol and the formaldehyde from the impregnation stage where special impregnation agents such as resins and biodegradable solvents are used, BAT is to use one of the techniques given below. U.K.

a Descriptions of the techniques are given in Section 1.10.
	Techniquea
a	Regenerative thermal oxidiser in combination with an ESP for the mixing, baking and impregnation stages
b	Biofilter and/or bioscrubber for the impregnation stage where special impregnation agents such as resins and biodegradable solvents are used

BAT-associated emission levels: See Table 55.

Table 55

BAT-associated emission levels for TVOC emissions to air from mixing, baking and impregnation

a As an average over the sampling period.
b The lower end of the range is associated with the use of an ESP in combination with a regenerative thermal oxidiser. The upper end of the range is associated with the use of a biofilter and/or a bioscrubber.
Parameter	BAT-AEL (mg/Nm3)a b
TVOC	≤ 10-40

The associated monitoring is in BAT 10.