nick cliffe - closed loop recycling at emerge agm
DESCRIPTION
Presentation by Nick Cliffe from Closed Loop Recycling at EMERGE public meeting on "The Future of Plastics" held on 24/11/11TRANSCRIPT
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www.closedlooprecycling.co.uk
Sorting Plastic Packaging … for Fun & Profit
Nick Cliffe
Closed Loop Recycling
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Why sort?
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Why sort?
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Why sort?
Value
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Why sort?
Customer requirements
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Why sort?
Specialised reprocessing
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Why just plastic bottles?
= + Plastic Bottles
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Primary Sorting
At point of collection Kerbside Sort Comingled
QUALITY COST
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+ve and –ve sorting
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+ve and –ve sorting
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Man vs. Machine
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Near Infra-Red
Spectra for PET – source: Spectral Database (SDBS) National Institute of Advance Industrial Science & Technology
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PP 0.85 / 0.95
HDPE 0.94 / 0.96
Water 1.0
PS 1.03 - 1.06
PVC 1.32 - 1.42
PET 1.35 - 1.38
Density Separation
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Flake sorting
• Colour cameras
• NIR systems
• Laser Raman Spectroscopy
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Flake sorting
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Shape recognition
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Shape recognition
• Part recognition
– Shape
– Colour
• Label matching
– Known
– Unknown
– Label database
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Coded Packaging - consumers
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Coded packaging - machines
Item Marker A Marker B
Clear PET Bottle - -
Natural HDPE bottle - -
Natural HDPE bottle – detergent - Clear PP packaging – food product - Clear PP packaging – non food product Clear PET Bottle with nylon barrier layer -
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Conclusion
• We want to recycle all plastic packaging
• To do this we need both infrastructure and smart packaging
• Most of the tools are in place …
• Thank you