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Waste macro-management

Waste macro-management. Henrik Lid Scharff. What is waste?. Household waste. Sewage. Organics. Garbage. Paper. Rest. Special. Organic waste, traditionally. Distributed sources Seen as resource Low impact on nature Natural relationship. Heat, fertiliser, construction material..

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Waste macro-management

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  1. Waste macro-management Henrik Lid Scharff

  2. What is waste?

  3. Household waste Sewage Organics Garbage Paper Rest Special

  4. Organic waste, traditionally • Distributed sources • Seen as resource • Low impact on nature • Natural relationship • Heat, fertiliser, construction material.. • Used (very) locally

  5. Organic waste, industrial age • Concentrated sources • Waste becoming a problem • No local use • Distancing relationship • Sewage systems and sewage treatment plants • Landfill and incinerators

  6. Issues arising • Spread of pathogens • Concentrated outlets, high concentration of nutrients, chemicals, heavy metals etc to: • Water; rivers, lakes, fjords, seas • Soil, landfill sites, industrial areas etc • Air; local odours, methane to atmosphere • Removal of nutrients from soil

  7. Organic waste, recent • National and regional regulations • EU prohibited organic landfill in 2004 • Reduced disposal to nature • Source (household) separation • Advanced sewage treatment plants

  8. Typical modern waste structure Sea Water Sewage treat-ment plants Sewage • Burning • Landfill • Compost • ..or Sludge Organics Sortingplant Garbage Paper Energy Biogas plant Rest Fertilizer Special

  9. Current issues • How to recycle nutrients? • How to minimise spreading of pathogens? • How to finally dispose? • Transportation of • Source separation issues • Regulation; waste or products? • Nutrients in final discharge water

  10. End uses from Biogas plant • Energy (Methane) • Local direct uses • Cleaned and Compressed or liquified to vehicle fuel • Electricity production (gas engine or turbine)

  11. Oslo area EGE Biogas plant Haraldrud, Sorting and incineration Bekkelaget, sewage treatment VEAS, sewage treatment

  12. Oslo Biogas plant • Contract value 43 m€ • Capacity: 50 000 t/a food waste • Biogas to vehicle fuel gas (supports 135 buses) • Opened january 2013 • Household waste, supermarket waste, ABP (slaughter, fishfarm ..) Source; Cambi AS

  13. Oslo Biogas plant

  14. Oslo Biogas Official view

  15. Biogas plant, concept Source; Cambi AS

  16. Biogas plant, challenges Source; Cambi AS

  17. Simplified mass balance Source; Cambi AS

  18. Biofertilizer Source; Cambi AS

  19. Cambi promotion video

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