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Regulating Hanson Cement

Regulating Hanson Cement. Name Ann Weedy Job title Compliance Team Leader Date September 2011. Our Role in the Health Investigation Questions of Community Concern Regulatory Factsheets Future Regulation and Engagement. Our Role in the Health Investigation.

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Regulating Hanson Cement

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  1. Regulating Hanson Cement Name Ann Weedy Job title Compliance Team Leader Date September 2011

  2. Our Role in the Health Investigation • Questions of Community Concern • Regulatory Factsheets • Future Regulation and Engagement

  3. Our Role in the Health Investigation • Member of Investigation Response team • Provided monitoring data and complaints information • Provided factual answers to many community questions raised during investigation

  4. Questions of Community Concern • 87 questions collated from local communities • 45 of these related to the site and its regulation • Environment Agency Wales has provided factual answers about the site and its regulation • Report produced with these Q&A’s

  5. Regulatory Factsheets • Q&A’s grouped into topics → factsheets • Our Regulatory Role • The Cement Making Process (Hanson) • Fuels • Landfill • Emissions and Monitoring • Dioxins • Factsheets summarise the full Q&A Report

  6. Our Regulatory Role • Regulate operation and emissions under an environmental permit • Permit specifies locations and limits for emissions to air, land and water • Any emission from a non authorised emission point (fugitive) not permitted • Inspect, Audit, Review data • Enforcement tools for non compliance • Complaints

  7. The Cement Making Process • Raw Materials – Limestone/Sand/Pulverised Fuel Ash crushed and blended • Raw materials ground and dried and blended →raw meal • Raw meal fed into top of tower for preheating • Hot meal fed to Kiln where 1450ْC heat converted to clinker • Clinker then ground in mills with gypsum into cement • Hanson Cement can provide further information on their process

  8. Fuels • Start up fuels • Gasoil, Kerosene, Coal, Petcoke • Waste Derived (Alternative) fuels • Cemfuel, Profuel, Meat and Bone Meal (MBM) • Chipped tyres, Solid Recovered Fuel (SRF) • No alternative fuels are used during start up • Continuous monitoring of stack emissions during startup or shut down

  9. The Kiln as a Co-incinerator • Cement Manufacture very energy intensive process • Waste derived fuels can be burnt in the kiln to generate heat energy for cement production • Reduces requirement for burning non renewable fossil fuels • The kiln cannot operate as an incinerator solely as a means of burning waste, it can only operate to make clinker

  10. Landfill • Waste landfilled at Padeswood 1949-2002 • No engineering requirements • 2004-05 waste capped and leachate drainage system installed • Reduce infiltration and leachate generation • Operator still legally required to monitor (App A) • New landfill permitted in 2007 never used

  11. Emissions and Monitoring • Schedule of all monitoring requirements provided in report appendix B • Monitoring by Hanson to MCERTS standards • Periodic Check monitoring of equipment and procedures by Environment Agency • Summary of emissions of CO2, SO2, NOx, Dioxins from 2001-2010 graphed • Kiln 4 emissions significantly lower (more efficient process) • Reduced production since 2008 (2006 emissions more typical for normal production rates)

  12. Stack Emissions 2001-2010

  13. Dioxins • Limit in permit 0.1ng per cubic metre of exhaust gas • 1 000 000 000th of a gram • Kiln 4 designed to minimise production of Dioxins • Operates well below these limits except for 2 events • 2004 Dioxin emission from Kiln 3 • 2008 Dioxin emission from Kiln 4 during SRF trials

  14. Future Regulation and Engagement • EAW will continue to regulate the site whilst it has an Environmental permit • Quarterly Community Liaison meetings • Annual newsletters • 24 Hr Hotline 0800 807060

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