Technology of recycling
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Technology of Recycling. By Susy Kindred. Source: http://www.main.org/nuna/welcome_to.html. Energy Balance. Energy required to make products from recycled materials vs. Energy required to make products from virgin material

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Technology of Recycling

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Technology of recycling

Technology of Recycling

By Susy Kindred

Source: http://www.main.org/nuna/welcome_to.html


Energy balance

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


Why this doesn t work

Why this doesn’t work

  • Recyclables change hands many times

  • Recycling is done by private companies

  • Everyone does it differently


What i did instead

What I did instead

  • Estimate of energy required to collect recyclables nationwide


Technology of recycling

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


Paper

Paper

  • Collected

  • De-inked

    - Slush

    - Detergent

  • Addition of new materials

  • Bleached

  • Dried

  • Ironed

  • Rolled

Source: http://www.carneyswaste.com/images/recycle_paper_web.jpg


Plastic

Plastic

  • Collected

  • Separated

  • Grind

  • Clean

  • Remold

http://www.basscoast.vic.gov.au/files/685_recycling%20plastic.jpg


Glass

Glass

  • Collected

  • Separated by color

  • Crushed

  • Cleaned

  • Used as cullet

  • Or remolded

Source: http://www.lotfi.net/recycle/Img0018.JPG


Metals

Metals

  • Collected

  • Separated into aluminum and steel

    AluminumSteelSteel sells

    ShreddedFlattenedat $0.10/lb

    CleanedDe-tinnedTin sells

    MeltedDrainedat $4.413/lb

    Ingots or sheetsRinsed

    Baled


Recycle anyway

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?


Improvements

Improvements

  • REDUCE

  • REUSE

  • THEN RECYCLE

Source: http://www.swansea.gov.uk/index.cfm?articleid=9442


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