Biomass UK No.2 Limited Barry Energy Production Facility Draft
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Natural Resources Wales permitting decisions Biomass UK No.2 Limited Barry Energy Production Facility Draft Decision Document Draft Decision Document EPR/xxxxx Issued xx/xx/xx Page 1 of 150 Contents Consultation on our decision document recording our decision-making process ....... 5 Glossary of acronyms used in this document ............................................................. 7 1. Our proposed decision ......................................................................................... 10 2. How we reached our draft decision ...................................................................... 10 2.1 Receipt of Application ................................................................................. 10 2.2 Consultation on the Application ................................................................... 11 2.3 Requests for further information .................................................................. 13 3. The Legal Framework .......................................................................................... 14 4. The Installation ..................................................................................................... 15 4.1 Description of the Installation and related issues ............................................ 15 4.1.1 The permitted activities ............................................................................ 15 4.1.2 The site .................................................................................................... 16 4.1.3 What the Installation does ........................................................................ 17 4.1.4 Process Flow Diagram ............................................................................. 20 4.1.5 Key Issues in the Determination ............................................................... 21 4.2 The Site and its protection .............................................................................. 21 4.2.1 Site setting, layout and history ................................................................. 21 4.2.2 Proposed site design: potentially polluting substances and prevention measures .......................................................................................................... 21 4.2.3 Closure and decommissioning ................................................................. 24 4.3 Operation of the Installation – General Issues ................................................ 25 4.3.1 Administrative Issues ............................................................................... 25 4.3.2 Relevant convictions ................................................................................ 25 4.3.3 Management ............................................................................................ 25 4.3.4 Site Security ............................................................................................. 26 4.3.5 Accident Management ............................................................................. 26 4.3.6 Off-site conditions .................................................................................... 26 4.3.7 Operating Techniques .............................................................................. 27 4.3.8 Energy Efficiency ..................................................................................... 28 4.3.9 Efficient use of raw materials ................................................................... 33 4.3.10 Avoidance, recovery or disposal with minimal environmental impact of wastes produced by the activities...................................................................... 34 4.3.11 Fire Prevention Plan ............................................................................... 35 4.3.12 Computational Fluid Dynamics (CFD) Modelling .................................... 42 5. Environmental Risk Assessment .......................................................................... 43 Draft Decision Document EPR/xxxxx Issued xx/xx/xx Page 2 of 150 5.1 Assessment Methodology ........................................................................... 44 5.1.1 Application of Environment Agency H1 Guidance .................................... 44 5.1.2 Use of Air Dispersion Modelling ............................................................... 45 5.2 Assessment of Impact on Air Quality .............................................................. 47 5.2.1 Consideration of Key Air Pollutants .......................................................... 50 5.2.2 Assessment of emissions of metals ......................................................... 55 5.2.3 Consideration of Local Factors ................................................................. 59 5.3 Human Health Risk Assessment .................................................................... 60 5.3.1 Our role in preventing harm to human health ........................................... 60 5.3.2 Particulates smaller than 2.5 microns ...................................................... 66 5.3.3 Assessment of Health Effects from the Installation .................................. 67 5.4 Biodiversity, Heritage, Landscape and Nature Conservation .......................... 68 5.4.1 Sites Considered ...................................................................................... 68 5.4.2 Habitats Assessment ............................................................................... 70 5.4.3 Non – Statutory sites ................................................................................ 72 5.4.4 Impact of Abnormal Operations ................................................................ 75 6. Application of the Best Available Techniques ....................................................... 76 6.1 Scope of consideration ................................................................................... 76 6.1.1 Consideration of Furnace Type ................................................................ 77 6.1.2 Boiler Design ............................................................................................ 85 6.2 BAT and emissions control ............................................................................. 86 6.2.1 Particulate Matter ..................................................................................... 87 6.2.2 Oxides of Nitrogen (NOx).......................................................................... 88 6.2.3 Acid Gases, SOx, HCl and HF .................................................................. 90 6.2.4 Carbon monoxide and volatile organic compounds (VOCs) ..................... 93 6.2.5 Dioxins and Furans (& Other POPs) ........................................................ 94 6.2.6 Metals ...................................................................................................... 95 6.3 BAT and Persistent Organic Pollutants (POPs) .............................................. 96 6.4 BAT and global warming potential ................................................................ 100 6.5 Efficient Use of Raw Materials, Water and Energy ....................................... 101 6.6 Handling and Storage of Air Pollution Control residue (APCr) and bottom ash ............................................................................................................................ 102 6.7 Other emissions to the Environment ............................................................. 103 6.7.1 Emissions to Surface Water ................................................................... 103 6.7.2 Emissions to Sewer ................................................................................ 104 6.7.3 Fugitive emissions .................................................................................. 105 6.7.4 Odour ..................................................................................................... 105 www.naturalresourceswales.gov.uk Issued xx/xx/xx Page 3 of 150 6.7.5 Noise ...................................................................................................... 106 6.8 Setting ELV’s and other permit conditions .................................................... 110 6.8.1 Translating BAT into permit conditions ................................................... 110 6.9 Monitoring ..................................................................................................... 113 6.9.1 Monitoring during normal operations ...................................................... 113 6.9.2 Monitoring under abnormal operations arising from the failure of the installed CEMs .............................................................................................................. 113 6.9.3 Continuous emissions monitoring for dioxins and heavy metals ............ 114 6.10 Reporting .................................................................................................... 115 7. Other Legal Requirements ................................................................................. 116 ANNEX 1: Application of Chapter IV of the Industrial Emissions Directive (IED) ... 123 ANNEX 2: Pre-Operational Conditions ................................................................... 129 ANNEX 3: Improvement Conditions ....................................................................... 130 ANNEX 4: Advertising and Consultation on the application ................................... 132 www.naturalresourceswales.gov.uk Issued xx/xx/xx Page 4 of 150 Determination of an Application for an Environmental Permit under the Environmental