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Waste management in the Hannover-Region

Waste management in the Hannover-Region. Waste Collection in the Past. Waste management has been a municipal responsibility for 100 years. Waste Collection Today. Since 2003, a regional responsibility serving 1.1 million people Approx. 1,000 employees

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Waste management in the Hannover-Region

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  1. Waste management in the Hannover-Region

  2. Waste Collection in the Past Waste management has been a municipal responsibility for 100 years.

  3. Waste Collection Today • Since 2003, a regional responsibility serving 1.1 million people • Approx. 1,000 employees • Public service enterprise (no privatisation!)

  4. Central waste tip since 1937 Monitoring of seepage water and gas since 1990 No more unprocessed waste is dumped since 2005. Hannover Lahe Waste Tip

  5. Reduction Waste by Factor 5

  6. Dramatic reductions in waste quantities (1989 - 2002) • Waste avoidance (- 380,000 t) • Dumping of soil, building rubble, sewage sludge (- 340,000 t) • Recycling, composting of organic waste (+ 72,000 t) • Recycling of glass, paper, packaging and scrap metal (+ 41,700 t) Decrease in waste-to-disposal from c. 1,000,000 to 200,000 tonnes p.a. in the City of Hannover

  7. Household Waste Pre-sorting Result at Kronsberg-housing-area: Approx. 30% reduction in waste volumes (City: 219 kg per household p.a., Kronsberg: 154 kg per household p.a.)

  8. Paper • 4,500 paper collection bins in the city • plus weekly kerbside collections • 40,600 tonnes p.a. = 79 kg per inhabitant

  9. Glass • More than 400 bottle banks in the city • 16,800 tonnes p.a.= 33 kg per inhabitant • Decrease due to new regulations on returnable containers this year

  10. 5,300 collection bins plus kerbside collection every other week 11,000 tonnes p.a. = 21 kg per inhabitant Packaging(Yellow Sack)

  11. Composting • 1998establishment of organic waste collection system • 2002  18,500 t(35 kg per inhabitant) • plus 32,000 tgreen waste from plant nurseries and gardens

  12. Waste Concept Home composting

  13. Great potential for commercial waste reduction

  14. Example Soil Management Result at Kronsberg: 700,000 m3 excavated soil re-used, making about 100,000 lorry journeys unnecessary and thus saving 1,200 tonnes of CO2 emissions

  15. Example: Construction Sites • Waste sorting on site • Recycling of waste from demolition and modernisation projects • 1989 - 2002, reduction in rubble and building site waste of around 170,000 tonnes p.a.

  16. ca. 100,000 t/a biological treatment since 2006 hazardous waste landfill ca. 3,000 t/a recyclables ca. 20,000 t/a slag ca. 25,000 t/a compost ca. 35,000 t/a City of Hannover Waste Treatment in 2002 commercial waste construction waste household waste organics bulky waste street sweepings sewage sludge ca. 51,000 t/a ca. 38,000 t/a ca. 90,000t /a ca. 15,000 t/a ca. 16,000 t/a ca. 69,000 t/a ca. 1,000 t/a ca. 215,000 t/a mechanical residual waste treatment ca. 5,000 ca. 70,000 t/a composted ca. 100,000 ca. 15,000 ca. 100,000 ca. 100,000 t/a waste to energy since 2005 ca. 5,000 ca. 35,000 ca. 70,000 ca. 3,000 ca. 25,000 landfill ca. 70,000 t/a

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