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- 2. EXAMPLE: CONSTRUCTION & DEMOLITION WASTE Many jurisdictions in the US and EU are beginning to mandate
- 3. Corporations Responding: Example 1 In operation since 1999 Armstrong takes back old tiles (of course select
- 4. Food Water Habitation space Transport Heating and cooling Waste Other consumer goods Human consumption cycle Clothing
- 5. Waste Metabolism Waste
- 6. Municipal Solid Waste Metabolism Waste Technical Waste Biological Waste IDEAL?
- 7. Resources Sun Recommended reading available online, free of charge
- 8. Food Water Habitation space Transport Heating and cooling Waste Other consumer goods Ցիկլային, ոչ գծային Think
- 9. Biological output Technological output “Waste” Circular Economy Resources Sun To achieve such a circular economy we
- 10. Electronics 2-5 years Appliances 10-15 years Automobiles 10-20 years Comm. aircrafts 15-20 years Buildings 50-100 years
- 11. Heat as waste … Solid waste will be the primary focus of this lecture We will
- 12. Waste: Solid, particulate, wastewater, (energy) Hazardous waste, Toxic vs. Nontoxic Human Health, Ecosystem (*) includes medical
- 13. Short ton (US) = 2000 lbs = 110.23% of short ton Long ton (UK) = 2,240
- 14. Management of Municipal Solid Waste in the US, 2008 (by weight distribution) Source: “Municipal Solid Waste
- 16. Source: “Municipal Solid Waste Generation, Recycling, and Disposal in the United States: Facts and Figures for
- 17. ELECTRONIC WASTE Select Electronic Products in the US in 2007 Note(s): (*) Computer products include CPUs,
- 18. E-Waste
- 19. GLOBAL PERSPECTIVE ON SOLID WASTE Solid waste is primarily an urban issue Population (billions) Total Solid
- 20. GLOBAL PERSPECTIVE ON SOLID WASTE Recyclable Compostable Moisture Source: Sandra Cointreau, Solid Waste Management Advisor, The
- 21. GLOBAL PERSPECTIVE ON SOLID WASTE Waste Collection and Disposal (% of waste tonnes handled) Collection Safe
- 22. INCOME AND SOLID WASTE The trash goes to a plant (itself built of recycled materials) that
- 23. SOLID WASTE STREAMS Waste stream is the flow or movement of wastes from the point of
- 24. SOLID WASTE STREAMS Most waste disposal systems identify various waste streams and regulate each stream using
- 25. Source: “Study on the Selection of Waste Streams for End of Waste Assessment: Final Report” (IPTS,
- 26. Source: “Observations of Solid Waste Landfills in Developing Countries: Africa, Asia, and Latin America” by Lars
- 27. Landfill Environmental Issues (Overview) Five environmental issues with landfill: Almost always we burn fossil fuel to
- 28. Landfill Environmental Issues (1) We burn fossil fuel (usually diesel fuel) to get the waste to
- 29. Landfills generate greenhouse gases (GHGs): The GHG most associated with landfills is methane (CH4), although some
- 30. Landfills generate LEACHATE, liquid that drains or 'leaches' from a landfill; Its composition varies depending on
- 31. According to Biosolids, a national nonprofit, that conducts an annual survey, the total number of landfills
- 32. Landfill Environmental Issues (5) Landfills do a very poor job of returning natural resources back to
- 33. Biodegradation Biodegradation is the process by which organic substances (plant and animal matter) are decomposed by
- 34. The Garbage Project The Garbage Project, was established by archeologist William Rathje in 1973 at the
- 35. The Garbage Project So there’s hardly any biodegradation going on in the landfills; With the bottom
- 36. The Garbage Project In Rathje’s re-telling of this story he points out to a fascinating aspect
- 37. Nutrients Water Resources Resource Living Organism Consumption Cycle Sun Solid Liquid Gas/Particulate Heat Air
- 38. Now let’s get deeper into waste. Let’s think about the concept of Waste It is very
- 39. Not a new revelation Many societies, esp. agrarian ones, had no waste practices. Even at the
- 40. How did we end up with this linearity? THE WAY WE END THE LIFE OF OUR
- 41. So what do we do? In the past 4 decades (esp. the past 2) there have
- 42. 1. Changes in Consumer Behavior - Three R’s: Reduce, Reuse, Recycle … Action directions - plus
- 43. It takes 8 kg of grain to produce 1 kg of cattle live weight And to
- 44. It takes 15k liters of water to get 1 kg of beef
- 45. Reduce consumption for environmental reasons Campaigns for human health reasons are more prevalent (e.g., reduce consumption
- 46. What is the relationship between consumption, economic growth, and happiness (which is after all what we’re
- 47. ELECTRONIC WASTE How many have iPhones? The gold in 30 iPhones is extracted from 1 ton
- 48. Recycle waste There are 3 important distinctions to make when discussing recycling: Organic vs. inorganic Pre-consumer
- 49. Organic vs. non-organic (synthetic, technical) Compost free enzyme for slaughterhouse waste treatment ORGANIC WASTE: fruits, vegetables,
- 50. RECYCLING (1b) INORGANIC WASTE
- 51. Pre-consumer (aka post-industrial) vs. post-consumer Preconsumer reducing the need for “virgin” materials There is also ways
- 52. Open-loop recycling (most plastic recycling today) vs. Closed-loop recycling (some industrial processes, glass?, … hypothetical automobile)
- 53. But as people like McDonough and Braungart have pointed out most of what we call recycling
- 54. But are these enough? Thinkers like McDonough and Braungart argue that adopting these practices only makes
- 55. But to reach true “eco effectiveness,” we have to redesign our highly complex system of industry,
- 56. Corporations Responding: Example 2 Cradle-to-Cradle Design
- 57. The Book “Cradle to Cradle” as a proof of concept
- 58. Redesigning the Book Let’s imagine a book that is not a tree, no paper as we
- 59. In the past decade McDonough and Braungart have taken their design principles to practice. Through their
- 60. Four-storey building which is completely recyclable, produces no emissions and is self-sufficient in terms of heating
- 61. THE END
- 62. Extra Slides
- 63. The Metabolism of City of London (1995-96; Population 7 million) Source: Compiled by Herbert Girardet and
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