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Deposit of high toxic waste in underground storages and underground reutilisations of the K+S AG

Deposit of high toxic waste in underground storages and underground reutilisations of the K+S AG. Belgrade, Serbia, 24.11.2011. The K+S Group | Facts and figures. A world wide leader in the sectors of: Special and standard fertilisers Plant care products Salt products

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Deposit of high toxic waste in underground storages and underground reutilisations of the K+S AG

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  1. Deposit of high toxic waste in underground storages and underground reutilisations of the K+S AG Belgrade, Serbia, 24.11.2011

  2. The K+S Group | Facts and figures A world wide leader in the sectors of: • Special and standard fertilisers • Plant care products • Salt products • More than 15,200 employees • Revenue 2010: 4.99 billion € • Since September 2008: listed in the DAX – Germany‘s most important stock index Sites in 25 countries Belgrade, Serbia, 24.11.2011

  3. K+S Group Core Business Sector Fertilizers Core Business Sector Salt Complementary Business Sectors Potash and Magnesium Products Nitrogen Fertilizers Salt Waste Mgmt. & Recycling Kali-Transport GmbH (KTG) Animal hygiene products Trading business (CFK) The K+S Group | Corporate structure Belgrade, Serbia, 24.11.2011

  4. K+S Entsorgung | Profile • A K+S Group business segment since 1991 • Disposal activities are centrally managed from Kassel • Internationally active, with representatives in eight countries • Pioneer of underground waste disposal;first facility worldwide: Herfa-Neurode (1972) • Revenue 2010: 73.8 m. € Europe‘s leading company in the field of underground waste disposal Belgrade, Serbia, 24.11.2011

  5. K+S Entsorgung | Areas of activity K+S Entsorgung Underground waste management Recycling Disposal (UTD) Reutilisation (UTV) Salt slag (REKAL) Building material Belgrade, Serbia, 24.11.2011

  6. K+S Entsorgung | Areas of activity Belgrade, Serbia, 24.11.2011

  7. Disposal facilities | Germany • Underground waste disposal plant Zielitz • Underground waste disposal plant Herfa-Neurode Belgrade, Serbia, 24.11.2011

  8. Disposal facilities | Germany • Underground waste disposal plant Zielitz • Underground waste disposal plantHerfa-Neurode • Underground reutilisation facility Zielitz • Underground reutilisation facility Bernburg • Underground reutilisation facility Wintershall • Underground reutilisation facility Hattorf • Underground reutilisation facility Unterbreizbach Belgrade, Serbia, 24.11.2011

  9. Disposal facilities | Germany • Underground waste disposal plant Zielitz • Underground waste disposal plant Herfa-Neurode • Underground reutilisation facility Zielitz • Underground reutilisation facility Bernburg • Underground reutilisation facility Wintershall • Underground reutilisation facility Hattorf • Underground reutilisation facility Unterbreizbach • Aluminium salt slag recyclingSigmundshall • Building material recycling Sehnde Belgrade, Serbia, 24.11.2011

  10. Solutions | Underground waste disposal • Focal point: underground waste disposal • Disposal at own facilities • Largest number of facilities on the market • Largest range of procedures • Ideal conditions for long-term safe disposal of wastes Basic principle: Safety Belgrade, Serbia, 24.11.2011

  11. Geology | Formation of the salt and potash deposits Evaporation caused by solar heat Barrier Semi-enclosed sea Salted sea water Potash deposit Salt deposit Formation of the salt layers 250 million years ago Belgrade, Serbia, 24.11.2011

  12. Geology | Werk Werra Deposit thickness up to 500 metres | Gastight Belgrade, Serbia, 24.11.2011

  13. Mining | Map of mine Belgrade, Serbia, 24.11.2011

  14. Mining | Preparation for blasting 1 | Large hole drilling 3 | Filling with explosives 2 | Blast hole drilling Belgrade, Serbia, 24.11.2011

  15. Mining | Underground transport of salt 5 | Transport via conveyor to the shaft 4 | Transport of ore Belgrade, Serbia, 24.11.2011

  16. Mining | Preparation of the cavities 2 | Installation of roof bolts 1 | Scaling of the roof Belgrade, Serbia, 24.11.2011

  17. Mining | Construction of roadways 2 | Levelling, humidification, compacting 1 | Filling up with salt Belgrade, Serbia, 24.11.2011

  18. UTD | Disposal of wastes Objective: long-term-safe removal of hazardous wastes from the biosphere Belgrade, Serbia, 24.11.2011

  19. UTD | Disposal of Wastes Objective: long-term-safe removal of hazardous wastes from the biosphere • Ideal geological conditions and technical safety systems • Deposit at depths of 500 to 800 m, way below the ground water • Traceability of all deposits due to detailed documentation • Retrievability of all wastes for recycling Belgrade, Serbia, 24.11.2011

  20. UTD Herfa-Neurode | Prerequisites • Prerequisites for underground waste disposal: • Disused, excavated area of the mine • Remote from extraction area with possibility to be sealed off • Galleries remain open and have no backfill obligation • Galleries have to be stable and must remain accessible even after a longer time • Mine has to be dry and free of water • Storage area has to be sealed off from biosphere by geological barriers • Maintenance-free Safest solution for the disposal of hazardous waste Belgrade, Serbia, 24.11.2011

  21. UTD Herfa-Neurode | Waste types • Examples of waste types • arsenic-containing wastes • mercury-containing wastes • contaminated construction and demolition waste (e.g. heavy metal, dioxin, mercury, PCB) • hardening salt residues • cyanide-containing wastes • filter dusts Belgrade, Serbia, 24.11.2011

  22. UTD Herfa-Neurode | Multi-barrier-system • Natural barriers • Salt (gastight) 300 m • Clay (watertight) 100 m • Bunter stone 500 m • Artificial barriers • Waste packaging • Brick walls • Field dams • Disposal field dams • Watertight sealing of the shafts Belgrade, Serbia, 24.11.2011

  23. UTV | Underground Reutilisation Objective: safeguarding former mining chambers Belgrade, Serbia, 24.11.2011

  24. UTV | Underground Reutilisation Objective: safeguarding former mining chambers • Utilisation of the wastes‘ material properties • Deployment of certain, non-mining mineral wastes • Support of pillars by backfill material, prevention of deformations • Disposal option for less contaminated materials • Backfill obligation valid only for certain mine sectors Belgrade, Serbia, 24.11.2011

  25. UTV | Backfill Procedures Backfill procedure depends on waste properties & site conditions Stacking backfill Slurry backfill Tipping backfill • Deposited by dump trucks • Dumping and compacting • Marginally contaminated materials Belgrade, Serbia, 24.11.2011

  26. UTV | Backfill Procedures Backfill procedure depends on waste properties & site conditions • Deposited by dump trucks • Dumping and compacting • Marginally contaminated materials Stacking backfill Slurry backfill Tipping backfill • Conditioning and packaging • Stacking of big-bags • Filling of the gapswith rock salt Belgrade, Serbia, 24.11.2011

  27. UTV | Backfill Procedures Backfill procedure depends on waste properties & site conditions • Deposited by dump trucks • Dumping and compacting • Marginally contaminated materials Stacking backfill Slurry backfill Tipping backfill • Conditioning and packaging • Stacking of big-bags • Filling of the gapswith rock salt • Material pneumatically transportable • Mixing with salt brine • Sludge production • Pumping into caverns Belgrade, Serbia, 24.11.2011

  28. Recycling | Building Material Recycling Pilot project: greening of potash tailings pile • Solution for uncontaminated or marginally contaminated soil,construction and demolition waste • Processing of material • Depositing on potash tailings pile • Basis for plant growth Belgrade, Serbia, 24.11.2011

  29. Recycling | REKAL Complete solution for the secondary aluminium industry • Provision of high-grade salt fluxes • Salt slag processing • Reutilisation of all components Belgrade, Serbia, 24.11.2011

  30. K+S Entsorgung | Long-term-safety • Agencies in different countries • International team • Experienced in project management • Experienced in managing notification procedures • Large number of sites • Technical diversity • Longest experience in underground disposal • Maintenance-free Belgrade, Serbia, 24.11.2011

  31. T h a n k y o u f o r y o u r a t t e n t i o n ! Belgrade, Serbia, 24.11.2011

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