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intensive unit   A week ago the Commission Implementing Decision (EU) 2017/302 of 15 February 2017 establishing best available techniques (BAT) conclusions for the intensive rearing of poultry or pigs was published. These conclusions are compulsory following the Industrial Emission Directive of the European Parliament and of the Council and set specific points regarding environmental issues for large intensive units. The good news is that odour management is a key issue in this document. The bad news is that no Emission Levels Associated with BATs (BAT-AELs) for emissions to air of odours have been set, just for ammonia, which is not quite the same. It seems that there is a general fear to set limits in terms of odour units or meters of setback distance.

   The Industrial Emission Directive (IED) defines a legal framework in Europe related to environmental permitting and thus odour emission. This regulation applies to Intensive rearing of poultry (more than 40 000 places), pigs over 30 kg (more than 2000 places) and sows (more than 750 places) in 39 countries in the EU under the European Environment Agency (EEA) umbrella.

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bref waste chemicl   The Commission implementing the decision establishing the Best Available Technique (BAT) Conclusions for this sector has been published on the Official Journal of the European Union. This Best Available Technique REFerence (BREF) document covers the entire chemical sector and provides information on aqueous and/or gaseous releases from chemical installations and the good news is that odour management is a key issue in the Common Waste Water and Waste Gas Treatment/Management Systems in the Chemical Sector.

    As mentioned before, the BAT Conclusions (from now on, 'the Conclusions') have been published on an official journal. That makes this document a law.

   There are three BAT techniques approved for odour Management for this industry: the BAT 6, the BAT 20 and the BAT 21.

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bref WT 2015   The first draft of the BREF (Best Available Techniques (BAT) Reference Document ) on Waste Treatment (WT) has been issued on 18/12/2015 and the word "odour" appears 251 times. This is a measure of the importance of the odour management in this BREF. For example, in the recently reviewed and final Draft of the BREF Document for the Production of Pulp, Paper and Board, the word odours appears 148 times. 

   This is a good opportunity to revise the Draft and send some comments concerning the odour management field, for those of you who are involved in odour regulations. For example, for emissions to air from mechanical treatment of waste with calorific value there is a tipical range of 274 to 1020 ouE/m3.

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