# Commission Implementing Decision (EU) 2016/1032 of 13 June 2016 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the non-ferrous metals industries (notified under document C(2016) 3563) (Text with EEA relevance), Division 1.10.1.5: VOC, PAH, and PCDD/F emissions Extent: E+W+S+N.I. Technique Description Afterburner or thermal oxidiser Combustion system in which the pollutant within the exhaust gas stream reacts with oxygen in a temperature-controlled environment to create an oxidation reaction Regenerative thermal oxidiser Combustion system that employs a regenerative process to utilise the thermal energy in the gas and carbon compounds by using refractory support beds. A manifold system is needed to change the direction of the gas flow to clean the bed. It is also known as a regenerative afterburner Catalytic thermal oxidiser Combustion system where the decomposition is carried out on a metal catalyst surface at lower temperatures, typically from 350 °C to 400 °C. It is also known as a catalytic afterburner Biofilter It consists of a bed of organic or inert material, where pollutants from off-gas streams are biologically oxidised by microorganisms Bioscrubber It combines wet gas scrubbing (absorption) and biodegradation, the scrubbing water containing a population of microorganisms suitable to oxidise the noxious gas components Select and feed the raw materials according to the furnace and the abatement techniques used The raw materials are selected in such a way that the furnace and the abatement system used to achieve the required abatement performance can treat the contaminants contained in the feed properly Optimise combustion conditions to reduce the emissions of organic compounds Good mixing of air or oxygen and carbon content, control of the temperature of the gases and residence time at high temperatures to oxidise the organic carbon comprising PCDD/F. It can also include the use of enriched air or pure oxygen Use charging systems, for a semi-closed furnace, to give small additions of raw material Add raw material in small portions in semi-closed furnaces to reduce the furnace cooling effect during charging. This maintains a higher gas temperature and prevents the reformation of PCDD/F Internal burner system The exhaust gas is directed through the burner flame and the organic carbon is converted with oxygen to CO2 Avoid exhaust systems with a high dust build-up for temperatures > 250 °C The presence of dust at temperatures above 250 °C promotes the formation of PCDD/F by de novo synthesis Injection of adsorption agent in combination with efficient dust collection system PCDD/F may be adsorbed onto dust and hence emissions can be reduced using an efficient dust filtration system. The use of a specific adsorption agent promotes this process and reduces the emissions of PCDD/F Rapid quenching PCDD/F de novo synthesis is prevented by rapid gas cooling from 400 °C to 200 °C --- Source: https://www.legislation.gov.uk/eudn/2016/1032/annex/division/1.10/division/1.10.1/division/1.10.1.5 (the official version) Page: https://openlegislation.uk/eu-decision-2016-1032/annex/division-1.10/division-1.10.1/division-1.10.1.5 Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.