# Commission Implementing Decision (EU) 2015/2119 of 20 November 2015 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of wood-based panels (notified under document C(2015) 8062) (Text with EEA relevance), Division BAT 17: In order to prevent or reduce emissions to air from the dryer, BAT is to achieve and manage a balanced operation of the drying process and to use one or a combination of the techniques given below.

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

Descriptions of the techniques are given in Section 1.4.1.
Technique
Main pollutants abated
Applicability
a
Dust abatement of inlet hot gas to a directly heated dryer in combination with one or a combination of the other techniques listed below
Dust
Applicability may be restricted, e.g. in cases of existing smaller wood dust burners.
b
Bag filter
Dust
Applicable to indirectly heated dryers only. Due to safety concerns, special care should be taken when using exclusively recovered wood.
c
Cyclone
Dust
Generally applicable.
d
UTWS dryer and combustion with heat exchanger and thermal treatment of discharged dryer waste gas
Dust, volatile organic compounds
Not applicable to fibre dryers.
Applicability may be limited for existing combustion plants not suitable for post-combustion of the partial dryer waste gas flow.
e
Wet electrostatic precipitator
Dust, volatile organic compounds
Generally applicable.
f
Wet scrubber
Dust, volatile organic compounds
Generally applicable.
g
Bioscrubber
Dust, volatile organic compounds
Applicability may be limited by high dust concentrations and high temperatures in the waste gas from the dryer.
h
Chemical degradation or capture of formaldehyde with chemicals in combination with a wet scrubbing system
Formaldehyde
Generally applicable in wet abatement systems.
Table 1
BAT-associated emission levels (BAT-AELs) for emissions to air from the dryer and for combined treated emissions from the dryer and the press
This BAT-AEL does not apply when using pine as the predominant raw material.
Emissions below 30 mg/Nm3 can be achieved using UTWS dryer.
When using almost exclusively recovered wood, the upper end of the range may be up to 15 mg/Nm3.
Parameter
Product
Dryer type
Unit
BAT-AELs(average over the sampling period)
Dust
PB or OSB
Directly heated dryer
mg/Nm3
3–30
Indirectly heated dryer
3–10
Fibre
All types
3–20
TVOC
PB
All types
< 20–200
OSB
10–400
Fibre
< 20–120
Formaldehyde
PB
All types
< 5–10
OSB
< 5–20
Fibre
< 5–15
The associated monitoring is in BAT 14.

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Source: https://www.legislation.gov.uk/eudn/2015/2119/annex/division/3/division/1.2/division/1.2.1/division/bat+17 (the official version)
Page: https://openlegislation.uk/eu-decision-2015-2119/annex/division-3/division-1.2/division-1.2.1/division-bat+17
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.