electronic waste sei tanghui july20, 2009. 2 outline questions relevant to electronic waste relevant...
TRANSCRIPT
Electronic Waste
Sei Tanghui
July20, 2009
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Outline
• Questions relevant to electronic waste
• Relevant arguments• Conclusion• Q&A
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• How many mobile phones did you use?
• How many computers did you use?• Ipod/mp3/mp4?• Cameras?• Television sets?
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How did you deal with your old cell phones?
old computers?old ipod/mp3/mp4?
old cameras?
old television sets?
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What’s electronic waste?
Electronic items being sold, donated,or discarded by their original owners
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Arguments
•Positive side •Negative sidea)Electric items are convenience
a) Public healtha)Electric items are convenience
a) Public health
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Positive sideElectronic items satisfy our day to day life.
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Negative side• Public health concerns
– Toxic substances • Lead• Mercury• cadmium
– Carcinogenic substances • polychlorinated biphenyls (PCBs)
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Arguments
•Positive side •Negative sidea)Electric items are convenience
b) Basel convention
a) Public health
b) Illegal dumpb) Basel convention b) Illegal dump
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Positive sideBasel convention gets E-waste under control between country and country.
Regulation Regulation
Regulation
If a country exports E-waste, it needsbilateral agreement.
Taiwan
China JapanE-waste
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Negative side
E-waste in developed countries/areas
Developing Countries/areas
Illegally dump in to
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Arguments
•Positive side •Negative sidea)Electric items are convenience
b) Basel convention
c) Recyclable Resources
a) Public health
b) Illegal dump for advancing countriesor areas
c) Feasibilityc) Recyclable Resources
c) Feasibility
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Positive side
Electronic waste is an artificial mine!
Heavy metals
Au
Fe Cu
Ag
Rare metals
TaNiLi
Rare earthelements
LaY
Sc
E-waste contains many metals.
- rarity value- base metal
- unevenly distributed- essential for electronic items
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Negative side• Is recycle feasible?
– Only 2% e-waste in the landfills
– 75% in the garages or the desk drawers
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Conclusion• Can we stop using electronic items?
• Take care of them & Use as longer as you could
• New policy for recycle(international) We should recycle among small area as if a
village. (East Asia, North America, East Europe etc)
transportation costs, policy ・・・
• New technology of recycle • Environmentally Benign Manufacturing (EBM)
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Questions ?
Comments?
Concerns?