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Mercury containing wastes - Metallic mercury recovery - PowerPoint Presentation
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Mercury containing wastes - Metallic mercury recovery -

Mercury containing wastes - Metallic mercury recovery -

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Mercury containing wastes - Metallic mercury recovery -

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  1. Mercury containing wastes - Metallic mercury recovery - Workshop on the management of heavy metals, especially metallic mercury Bucharest, 06 November 2009

  2. Current situation Metallic mercury in products and applications Total consumption ~ 320 - 530 t/a Most important for the use of mercury • Chlor- Industry • Dental amalgams • Chemicals COWI A/S –Final report [2008]

  3. Regulation EC (No) 1102/2008 Purpose ▫ Phase out mercury exports by 2011 ▫ Reduce demand and supply of mercury ▫ Reduction of mercury levels in the environment ▫ Reduction of mercury emissions Article 2. Metallic mercury ▫ No longer used in the Chlor-alkali industry ▫ Gained from cleaning of natural gas ▫ Gained from non-ferrous mining /smelting operations ▫ Extracted from cinnabar ore From 15 March 2011 Considered as waste and has to be disposed of

  4. Regulation EC (No) 1102/2008 Metallic mercury Regulated according to Regulation (EC) No 1102 / 2008 Mercury containing wastes • Activated carbons • Hg containing wastes from Chlorine Industry ▫ Waste from the production process ▫ Wastes from final deconstruction • Hg containing waste from commerce and Industry Not regulated according to Regulation (EC) No 1102 / 2008

  5. Mercury stocks Accumulated Hg Total 34.000 t Chlor-Alkali Industry ▫ ~10.900 to Metallic mercury ▫ ~11.000 to Contained in waste & site contamination COWI A/S –Final report [2008]

  6. Mercury containing wastes WHAT ABOUT MERCURY CONTAINING WASTES ? OPTIONS RECOVERY DISPOSAL ▫ Landfill ▫ Underground storage

  7. Scenario 11 / 2009 03 / 2011 Waste containing mercury Waste containing mercury Hg recovery Disposal Hg recovery Disposal ­Hg emissions ­ Environmental impacts ­Hg emissions ­ Environmental impacts stipulated in Swedish law Hg Distribution & Sales Disposal of Hg free waste Hg Stabilisation Disposal of Hg free waste + Hg removal from the ecosystem + Hg removal from the ecosystem + Marketing

  8. Metallic mercury recovery

  9. Metallic mercury recovery Vacuum dryer Hg containing sludges • Drying and distillation • Maximum evaporation of water • Appropriate for organic material and hydrocarbons • Pre-treatment step for rotary distillation • Max. Temperature ~ 350 °C • Vacuum process-emission free

  10. Metallic mercury recovery Rotary kiln Carbons, Catalysts, Hg sludges, metal containing residues • Distillation - no incineration • Max. Temperature ~ 800 °C • Inert Atmosphere • Evaporation of mercury • Gas Scrubber • Condensation of mercury • Exhaust gas cleaning

  11. Metallic mercury recovery Lamp recycling in “Crush-wash-sieve system” Mercury containing lamps and tubes (WEEE) 1. Crusher 2. Washing Unit 3. Sifting Unit 4. Colour and Metal separator Oversize Metal & Colour separator Purified Soda-Lime Glass Sifting

  12. Metallic mercury recovery Mercury purification • Further cleaning of recovered mercury • Pure Mercury, purity from 99,999 up to 99,999999 % • Transport in 34,5 kg steel flask or 1 t container • Distribution and sales in EU and abroad

  13. DELA GmbH • Holding all required permits according to ISO 9001 and ISO 14000 • Certificate 0119 : Specialist Waste Disposal Company

  14. Thank you foryour attention ! Miriam Ortheil Project Engineer DELA GmbH M.ortheil@delagmbh.de www.delagmbh.de