# Commission Implementing Decision (EU) 2017/1442 of 31 July 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for large combustion plants (notified under document C(2017) 5225) (Text with EEA relevance), Division BAT 58: In order to reduce emissions to air of dust, particulate-bound metals, and trace species from the combustion of process fuels from the chemical industry in boilers, BAT is to use one or a combination of the techniques given below.

Extent: E+W+S+N.I.

Technique
Description
Applicability
a.
Electrostatic precipitator (ESP)
See descriptions in Section 8.5
Generally applicable
b.
Bag filter
c.
Fuel choice
See description in Section 8.5.
Use of a combination of process fuels from the chemical industry and auxiliary fuels with a low averaged dust or ash content
Applicable within the constraints associated with the availability of different types of fuel and/or an alternative use of the process fuel
d.
Dry or semi-dry FGD system
See descriptions in Section 8.5.
The technique is mainly used for SOX, HCl and/or HF control
See applicability in BAT 57
e.
Wet flue-gas desulphurisation (wet FGD)
Table 37
BAT-associated emission levels (BAT-AELs) for dust emissions to air from the combustion of mixtures of gases and liquids composed of 100 % process fuels from the chemical industry in boilers
For plants operated < 1 500 h/yr, these BAT-AELs do not apply.
For plants operated < 500 h/yr, these levels are indicative.
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 15 mg/Nm3.
Combustion plant total rated thermal input(MWth)
BAT-AELs for dust (mg/Nm3)
Yearly average
Daily average or average over the sampling period
New plant
Existing plant
New plant
Existing plant
< 300
2–5
2–15
2–10
2–22
≥ 300
2–5
2–10
2–10
2–11

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Source: https://www.legislation.gov.uk/eudn/2017/1442/annex/division/5/division/5.1/division/5.1.5/division/1 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-1442/annex/division-5/division-5.1/division-5.1.5/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.