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Technology of Recycling By Susy Kindred Source:

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1 Technology of Recycling By Susy Kindred Source: http://www.main.org/nuna/welcome_to.html

2 Energy Balance Energy required to make products from recycled materials vs. Energy required to make products from virgin material Factors – sources, collection of recyclables, virgin materials, process equipment

3 Why this doesn’t work Recyclables change hands many times Recycling is done by private companies Everyone does it differently

4 What I did instead Estimate of energy required to collect recyclables nationwide

5 Source: ttp://www.concordnet.org/cpw/recycle/html/drivers.html

6 Paper Collected De-inked - Slush - Detergent Addition of new materials Bleached Dried Ironed Rolled Source: http://www.carneyswaste.com/images/recycle_paper_web.jpg

7 Plastic Collected Separated Grind Clean Remold http://www.basscoast.vic.gov.au/files/685_recycling%20plastic.jpg NumberCodePolymer 1PETPolyethylene Terepththalate 2HDPEHigh Density Polyethylene 3PVCPolyvinyl Chloride 4LDPELow Density Polyethylene 5PPPolypropylene 6PSPolystyrene 7Other

8 Glass Collected Separated by color Crushed Cleaned Used as cullet Or remolded Source: http://www.lotfi.net/recycle/Img0018.JPG

9 Metals Collected Separated into aluminum and steel AluminumSteel Steel sells ShreddedFlattened at $0.10/lb CleanedDe-tinned Tin sells MeltedDrained at $4.413/lb Ingots or sheetsRinsed Baled

10 Recycle Anyway? Paper is the number one trash in landfills Plastic is made from petroleum Glass is easy to recycle but even easier to reuse Metals are valuable ores –Environment?

11 Source: http://www.swansea.gov.uk/index.cfm?articleid=9442 Improvements REDUCE REUSE THEN RECYCLE


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