2. Processing Waste http://www.chrisjordan.com/

3. Cables http://www.chrisjordan.com/

4. Hard Drives http://www.chrisjordan.com/

5. Circuit Boards http://www.chrisjordan.com/

6. Cell Phones http://www.chrisjordan.com/

7. More Cell phones http://www.chrisjordan.com/

8. Computers-everybody wants them

10. http://www.ewaste.ch/welcome/ Computer Equipment (computers, printers etc) & Consumer Electronics (TVs) 67,000 Canada Electronic and Electrical Appliances including Refrigerators 118,000 Denmark Refrigerator, Air Conditioners, Televisions, Washing Machines, Computers 60,000 Thailand Computers, Home electrical appliances (TVs, Washing Machines, Airconditioners, Refrigerators) 14,036 Taiwan Video Products, Audio Products, Computers and Telecommunications Equipment 2,124,400 USA Office & Telecommunications Equipment, Consumer Entertainment Electronics,Large and Small Domestic Appliances, Refrigerators, Fractions 915,000 United Kingdom Office & Telecommunications Equipment, Consumer Entertainment Electronics,Large and Small Domestic Appliances, Refrigerators, Fractions 1,100,000 Germany Office & Telecommunications Equipment, Consumer Entertainment Electronics,Large and Small Domestic Appliances, Refrigerators, Fractions 66,042(*) Switzerland Categories of Appliances counted in e-waste Ewaste (tonnes / year) Country

11. Bad stuff I Medical equipment, fire detectors, sensing element in smoke detectors Radio-active substances - Americium Toner cartridges for laser printers / copiers - Toner Dust Others: Cable insulation - PVC (polyvinyl chloride) Cooling unit, Insulation foam - Chlorofluorocarbon (CFC) Fire retardants for plastics (thermoplastic components, cable insulation) TBBA is presently the most widely used flame retardant in printed wiring boards and casings. - TBBA (tetrabromo-bisphenol-A) - PBB (polybrominated biphenyls) - PBDE (polybrominated diphenyl ethers) Condensers, Transformers - PCB (polychlorinated biphenyls) TCE :trichloroethylene. Its vapor is used as a source of chlorine in Si processing, most notably during thermal oxidation of Si to complex metallic contaminants potentially present on the Si surface. Halogenated compounds: Occurrence in e-waste Substance

12. Bad stuff II Li-batteries - Lithium Rechargeable NiCd-batteries or NiMH-batteries, electron gun in CRT - Nickel Fluorescent lamps that provide backlighting in LCDs, in some alkaline batteries and mercury wetted switches - Mercury CRT screens, batteries, printed wiring boards - Lead Rechargeable NiCd-batteries, fluorescent layer (CRT screens), printer inks and toners, photocopying-machines (printer drums) - Cadmium Power supply boxes which contain silicon controlled rectifiers and x-ray lenses - Beryllium Getters in CRT - Barium Small quantities in the form of gallium arsenide within light emitting diodes - Arsenic Heavy metals and other metals:

13. materials worth recovering in a computer CRT,PWB Glass, solid state devices 6.8 24.8803 Silica PWB Wetting agent in thick film < 0.1 0.0063 Bismuth Housing, PWB, CRT Diodes < 0.1 0.0094 Antinomy Conductivity/PWB, connectors Conductivity < 0.1 0.0189 Silver PWB, connectors Connectivity, Conductivity < 0.1 0.0003 Palladium PWB Resistive circuit < 0.1 0.0016 Ruthenium Connectivity, conductivity/PWB, connectors Connectivity, Conductivity < 0.1 0.0016 Gold PWB, CRT Battery, Phosphor emitter 0.6 2.2046 Zinc Housing, CRT, PWB Structural, Magnetivity 0.23 0.8503 Nickel CRTs, PWBs, connectors Conductivity 1.91 6.9287 Copper PWBs, CRTs Metal joining 0.27 1.0078 Tin Housing,CRTs, PWBs Structural, Magnetivity 5.58 20.4712 Iron Housing, CRT, PWB, connectors Structural, Conductivity 3.86 14.1723 Aluminum Cable, Housing Insulation 6.26 22.9907 Plastics Location Use kg % Material

14. Recycled tons

16. Harpers Magazine, January 2005

17. Recycling copper

20. Super-fund Sites In Si Valley Http://Www.Svtc.Org/ 5 Miles Apple Intel Hp Applied Materials Lockheed Stanford

24. Alternative Energy • p-n junction: • Operation: --incident photon produces hole-elec. pair. --typically 0.5V potential. --current increases w/light intensity. • Solar powered weather station: polycrystalline Si Los Alamos High School weather station (photo courtesy P.M. Anderson)