Sakab English[1]

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This is a presentation of SAKAB, a company that treats garbage, particularly hazardous wastes from industries.

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Sakab English[1]

  1. 1. Welcome to
  2. 2. “Problem solver” for all kind of Hazardous Waste and contaminated soil
  3. 3. Facts about SAKAB •The Owners: E.ON Sweden 100 % • Established: Norrtorp 1976, WTE1 1983 • Facility & head office • Transfer stations & sales offices • Employees: abt 140 • Turnover 2008: 471 MSEK • Management systems certified according to ISO 14001, 9001 and OHSAS 18001.
  4. 4. Swedish legislation Superior Acts/Laws EU-regulations legislation Decided by the Swedish parliament EU-directives implemented in national Ordinances/Regulations legislation. National Decided by the Swedish government legislation can demand more than the directives Directions Decided by authority (EPA, Swedish Work Environment Authority, local or other) We have to obey EG-regulations, acts/laws, ordinances/regulations and directions. We do not have to obey EU-directives – they are all implemented
  5. 5. SAKAB’s Facility Norrtorp
  6. 6. SAKAB’s Facility • Sweden’s only full-range facility for hazardous waste. • Permitted to treat most types of hazardous waste. • Of which: Incineration 200 000 tonnes/year Landfill 85 000 tonnes/year PCT plant 10 000 tonnes/year Soil treatment 50 000 tonnes/year
  7. 7. SAKAB’s Treatment Methods • High temperature incineration, WTE1 • Incinerations of household, industrial and hazardous waste, WTE2 • Evaporation • PCT plant • Hazardous waste landfill • Treatment of contaminated soil • Mercury treatment • Recovery of silver • Treatment of monitor glass (CRT)
  8. 8. Treated Volumes 1995-2008 Wastetreatment 300 000 250 000 tonnes/year 200 000 150 000 100 000 50 000 0 1995 1996 1997 1998 1999 2000 2001 2002 2002 2003 2004 2005 2006 2007 2008 Incineration WTE1 Incineration WTE2 Evaporation PCT Mercury treatment Landfill Soilremediation
  9. 9. Incineration • 2/3 of the waste treated is incinerated • Incineration of complex hazardous waste – WTE1 • Incinerations of non-hazardous waste and less complex hazardous waste – WTE2
  10. 10. WTE1 – Incineration of Complex Hazardous Waste • Waste consisting organic pollutants • High temperature, >1.200oC • Hazardous chemical compounds are destructed • Unique flue-gas cleaning system with continuous sampling of dioxins • Energy-recovery (district heating and electricity)
  11. 11. Examples of Waste Incinerated in WTE1: • Oil waste • Solvents • Paint and varnish • PCB-containing waste • Pesticides • Hazardous chemicals
  12. 12. WTE1
  13. 13. WTE2 – Incineration of Waste • Examples of waste: household waste, industrial waste and less complex types of hazardous waste such as impregnated wood and plastics containing brominated flame retardants • High temperature, 850oC • Hazardous chemical compounds are destructed • Unique flue-gas cleaning system with continous sampling of dioxins • Energy-recovery (district heating and electricity)
  14. 14. WTE2 Boilerdome Scrubber Quench Condensor Turbine Generator Bunker Heat exchanger Absorber Baghouse filter Fluegas fan Electricity Slag District heating Örebro Kumla Halllsberg
  15. 15. Evaporation of Water Containing Hazardous Substances • The water is superheated • The steam is used in the incinerators • Polluted organic concentrate is incinerated • Polluted inorganics are landfilled after mixing with ashes • Examples of waste: emulsions and photo-chemicals
  16. 16. Physical Chemical Treatment • Percipitation of metals as hydroxides • Neutralizing pickling waste • Pickling waste often contains heavy metals • Recovery of silver from photo-chemicals
  17. 17. Physical Chemical Treatment Alkaline waste Acidic waste Chemical process Separation process Metal hydroxide Lime Sodium hydroxide Sewage treatment Steam Sulphide plant Hazardous Waste Landfill Waste Cooling water to incinerator Neutralized waste Sludgetank
  18. 18. Treatment of Mercury Waste • Mercury is to be excluded from the environment according to decision in the Swedish parliament. • Some wastes are stabilized using concrete and sulphur and then landfilled. • Mercury waste above 0.1 % is stored awaiting an underground storage to be established before 2015.
  19. 19. Examples of Mercury Waste • Fluorescent tubes • Printed circuit boards • Batteries • Amalgam • Contaminated soil • Laboratory waste
  20. 20. Treatment of Mercury Waste Switches Fluorescent tubes Amalgam Carbon Thermometres Manometers Soil Circuit cards Slurry Batteries Hg Cement, Sulphur Disassembly Cooling Incineration Stabilization/ Recovery/ Landfilling Landfilling Landfilling Hg Heating Shredding/ Mercury Distillation Separation components Stabilization Recovery Storage
  21. 21. Treatment of Contaminated Soil • Organic pollutants – biological treatment, soil-cleaning or thermal treatment • Inorganic pollutants – soil cleaning • The different methods can be combined depending on the types of pollution
  22. 22. Biological Treatment • Microbes are used. The treatment can be aerobic or anaerobic • SAKAB’s methods: - Biosan – non-complex aliphates such as petroleum - TOSS – complex pollutants such as explosives - Daramend – complex pollutants such as PAH, nonylfenol and pesticides - The remedied soil can be re-used
  23. 23. Methods for Soil Cleaning • Pollutants and/or the smallest fraction of the soil is separeted • SAKAB’s methods: - Conventional soil cleaning - Leaching - The remedied soil can be re-used
  24. 24. Hazardous Waste Landfill • Inorganic waste containing heavy metals • Ashes and slags from the incinerators, metal hydroxides, concentrates from soil cleaning • The landfill is constructed according to the landfill directive
  25. 25. Hazardous Waste Landfill 2007 Soil Rain/snow 20% evaporation Topliner Controlwell for top liner Synthetic liner Landfill 400 x 350 metres Waste Bottom liner Surface water ditch Synthetic liner Ditch for leachate Existing land
  26. 26. Control of Emissions and Health • Emissions from our plant are checked and controlled by laws and regulations. • The County Administrative Board is our supervising agency. We have permits to comply with. • Environmental check-ups of for example mosses, organic and inorganic micro-pollutants in the air, and in fish in the lakes, groundwater. • Staff health check-ups • Our own sewage treatment plant
  27. 27. Research & Development • Co-operation with the university of Örebro. Laboratory located at our facility. 4-5 PhD students.
  28. 28. Questions? Thank you for your time!

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