# 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 27: In order to prevent or reduce mercury emissions to air from the combustion of solid biomass and/or peat, BAT is to use one or a combination of the techniques given below.

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

Technique
Description
Applicability
Specific techniques to reduce mercury emissions
a.
Carbon sorbent (e.g. activated carbon or halogenated activated carbon) injection in the flue-gas
See descriptions in Section 8.5
Generally applicable
b.
Use of halogenated additives in the fuel or injected in the furnace
Generally applicable in the case of a low halogen content in the fuel
c.
Fuel choice
Applicable within the constraints associated with the availability of different types of fuel, which may be impacted by the energy policy of the Member State
Co-benefit from techniques primarily used to reduce emissions of other pollutants
d.
Electrostatic precipitator (ESP)
See descriptions in Section 8.5.
The techniques are mainly used for dust control
Generally applicable
e.
Bag filter
f.
Dry or semi-dry FGD system
See descriptions in Section 8.5.
The techniques are mainly used for SOX, HCl and/or HF control
g.
Wet flue-gas desulphurisation (wet FGD)
See applicability in BAT 25
The BAT-associated emission level (BAT-AEL) for mercury emissions to air from the combustion of solid biomass and/or peat is < 1–5 μg/Nm3 as average over the sampling period.

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Source: https://www.legislation.gov.uk/eudn/2017/1442/annex/division/2/division/2.2/division/2.2.5/division/1 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-1442/annex/division-2/division-2.2/division-2.2.5/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.