# Commission Implementing Decision of 28 February 2012 establishing the best available techniques (BAT) conclusions under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions for the manufacture of glass (notified under document C(2012) 865) (Text with EEA relevance) (2012/134/EU), Division 32

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

BAT is to reduce dust emissions from the waste gases of the melting furnace by using one or a combination of the following techniques:
A description of the secondary treatment systems is given in Sections 1.10.1 and 1.10.7.
Technique
Applicability
(i)
Reduction of the volatile components by raw material modifications
The formulation of batch compositions without boron compounds or with low levels of boron is a primary measure for reducing dust emissions which are mainly generated by volatilisation phenomena. Boron is the main constituent of particulate matter emitted from the melting furnace
The application of the technique is limited by proprietary issues, since the boron-free or low-boron batch formulations are covered by a patent
(ii)
Filtration system: electrostatic precipitator or bag filter
The technique is generally applicable.
The maximum environmental benefits are achieved for applications on new plants where the positioning and characteristics of the filter may be decided without restrictions
(iii)
Wet scrubbing system
The application to existing plants may be limited by technical constraints; i.e. need for a specific waste water treatment plant
Table 22
BAT-AELs for dust emissions from the melting furnace in the continuous filament glass fibre sector
Values at levels of < 30 mg/Nm3 (< 0,14 kg/tonne melted glass) have been reported for boron-free formulations, with the application of primary techniques.
The conversion factor reported in Table 2 (4,5 × 10–3) has been applied.
Parameter
BAT-AEL
mg/Nm3
kg/tonne melted glass
Dust
< 10 – 20
< 0,045 – 0,09

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Source: https://www.legislation.gov.uk/eudn/2012/134/annex/division/5/division/1.4/division/1.4.1/division/32 (the official version)
Page: https://openlegislation.uk/eu-decision-2012-134/annex/division-5/division-1.4/division-1.4.1/division-32
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.