logging in or signing up week1 what is ewaste Vilfrid Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 4102 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: January 18, 2008 This Presentation is Public Favorites: 7 Presentation Description No description available. Comments Posting comment... By: sweetdivya (7 month(s) ago) its osm presentation...plz plz plz.....vl u plz mail me dis prestation.......at rockingdivya.agarwal25@gmail.com.. Saving..... Post Reply Close Saving..... Edit Comment Close By: shabnammahajan (8 month(s) ago) great presentation... Saving..... Post Reply Close Saving..... 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See all Premium member Presentation Transcript E-Waste Science & Technology Curriculum: E-Waste Science & Technology Curriculum What is WEEE?Lesson Objectives: Lesson Objectives Lesson Outline: Lesson Outline What is E-Waste Where does it come from Where does it go How big is the problem Hazards SolutionsWhat is E-Waste?: Anything with a circuit board or a battery! What is E-Waste? E-waste encompasses a broad and growing range of electronic devices E-waste has become a problem of crisis proportions because of two primary characteristics: E-Waste is generated in great quantities E-Waste can be hazardous Exporting Harm: The High-Tech Trashing of Asia Feb 25, 2002 by the Basal Action Network and the Silicon Valley Toxics CoalitionPictures universal waste (ca): Pictures universal waste (ca) Where Does E-Waste Come From?: Where Does E-Waste Come From? Exporting Harm: The High-Tech Trashing of Asia Feb 25, 2002 by the Basal Action Network and the Silicon Valley Toxics Coalition PCs are major contributors because they rapidly become obsolete E-Waste is generated by three major sectors in the U.S. Individuals and small businesses Large businesses, government, and institutions Original equipment manufacturers (OEMs)Slide8: Cadmium in batteries Lead in solder joints Plastics in cablesPWB Anatomy: PWB Anatomy How much E-Waste?: How much E-Waste? How Much E-Waste Generated: How Much E-Waste Generated 500 million U.S. computers 1997-2007 6.32 billion pounds plastics 1.58 billion pounds lead <13% reused or recycled ~3 million tons to landfills/year (1997) 130 million cell phones, batteries, chargers (65,000 tons/yr, 2005) 6000 obsolete PCs/day in California Potential $1 billion cleanup cost (over 5 years) No estimates on CRT to HD, flat screen TVspictures: Photo courtesy of Recycling Council of Ontario picturespictures: Photo courtesy of Recycling Council of Ontario picturesE-Waste Hazards: E-Waste Hazards Heavy metals (lead, mercury, cadmium) Batteries containing cadmium Cathode ray tubes with lead oxide & barium Brominated flame-retardants on printed circuit boards, cables and plastic casing. PVC-coated copper cables and plastic cases Mercury in switches and flat screens Poly Chlorinated Biphenyl’s (PCB’s) in older capacitors & transformers What Hazards Does e-Waste Present?: What Hazards Does e-Waste Present? Several pounds of toxic heavy metals in most computer systems Lead and cadmium in circuit boards and CRT monitors Mercury in switches and LCD monitors Cadmium in computer batteries Toxic metals can leach into groundwater when landfilled or improperly disposed ofWhat Hazards Does e-Waste Present? (cont.): What Hazards Does e-Waste Present? (cont.) PCBs in older transformers and capacitors Flame retardants on printed circuit boards, plastic casings, cables, and PVC cable insulation Toxic dioxins and furans released by burningHazardous Waste: Hazardous Waste Contains carcinogens… Catches fire easily Is reactive or unstable… Corrodes metal containers http://www.learner.org/exhibits/garbage/hazardous.htmlWhere Does E-Waste Go?: Where Does E-Waste Go? Storage Landfill & Incineration Reuse Domestic Recycling Prisons Export to Developing CountriesWhere Does E-Waste Go?: Majority of waste electronics disposed in landfills Heavy metals may eventually leach into groundwater CRTs banned from landfills in CA and MA 50 - 80% of waste electronics collected for recycling in the U.S. is exported overseas Most electronics recyclers export some portion of their waste electronics overseas Frequent destinations: developing countries Where Does E-Waste Go?Landfill Hazards: Landfill Hazards Leaking landfills Leaching into soil and groundwater Chemical reactions Vaporization Uncontrolled firesIncineration Hazards: Incineration Hazards Dioxin formation Heavy metal contamination Contaminated slag, fly ash, and flue gasesFate of Exported Waste Electronics: Only most valuable components reclaimed; other potentially recyclable materials discarded Components often physically dismantled by hand Some components (chips, connectors) processed in acid Handlers often lack proper protective equipment Leftover liquid dumped into water sources Fate of Exported Waste ElectronicsFate of Exported Waste Electronics (cont.): Open burning of wires and other electronics components Wire insulation contains PVC or flame retardants Non-recyclable materials dumped along waterways, in open fields, etc. Plastic that is impure, has unmatchable color, etc. Leaded CRT glass Burned or acid-treated circuit boards Fate of Exported Waste Electronics (cont.)Is Waste Hazardous (Ca)?: Is Waste Hazardous (Ca)? CA requires waste generators to determine Generally, yes if Toxic Ignitable Corrosive Reactive Special Procedures to determine determining LCD, plasma display hazardsClassification of Hazards: Classification of Hazards Hazardous Universal Carcinogen Toxic Hazards in E-Waste: Hazards in E-Waste E-Waste Derivatives: E-Waste Derivatives Discuss the issue of excess packaging. Get the kids thinking about why they have to have the toy that comes in three boxes instead of the one with a price sticker on it. Batteries Recycling Electronics: Recycling Electronics Obsolete electronics have low resale value Most contain hazardous substances And some valuable metals Recycling saves resources and the environment Hazardous Waste Solutions: Hazardous Waste Solutions Waste Management: Minimize Impact Waste Prevention: Minimize the Volume Reduce waste and pollution Reuse as many things as possible Recycle and compost as much waste as possible Chemically or biologically treat or incinerate Bury what is left http://www.learner.org/exhibits/garbage/hazardous.htmlIntegrated Waste Management: Integrated Waste Management Source Reduction Recycling Waste combustion and landfilling U.S. Environmental Protection Agency, Consumer Handbook for Reducing Solid Waste, www.epa.gov, 7-15-05 Four Basic Principles: Four Basic Principles Reduce Reuse Recycle Respond You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
week1 what is ewaste Vilfrid Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 4102 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: January 18, 2008 This Presentation is Public Favorites: 7 Presentation Description No description available. Comments Posting comment... By: sweetdivya (7 month(s) ago) its osm presentation...plz plz plz.....vl u plz mail me dis prestation.......at rockingdivya.agarwal25@gmail.com.. Saving..... Post Reply Close Saving..... Edit Comment Close By: shabnammahajan (8 month(s) ago) great presentation... Saving..... Post Reply Close Saving..... Edit Comment Close By: sadaf63 (13 month(s) ago) Excellent ppt. Could u email it at:sadaf63in@yahoo.com Saving..... Post Reply Close Saving..... Edit Comment Close By: Gays (22 month(s) ago) hi...iam gayu...can u please tell me how to download this presentation..tis is very nice one...ll be waiting for ur reply.... Saving..... Post Reply Close Saving..... Edit Comment Close By: 18111987 (39 month(s) ago) hi,this is reena.will u do a favour 4 me?can u ls tell me hw i can download dis ppt i liked iit vry much pls rply. or pls forward it to me at kasana6@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript E-Waste Science & Technology Curriculum: E-Waste Science & Technology Curriculum What is WEEE?Lesson Objectives: Lesson Objectives Lesson Outline: Lesson Outline What is E-Waste Where does it come from Where does it go How big is the problem Hazards SolutionsWhat is E-Waste?: Anything with a circuit board or a battery! What is E-Waste? E-waste encompasses a broad and growing range of electronic devices E-waste has become a problem of crisis proportions because of two primary characteristics: E-Waste is generated in great quantities E-Waste can be hazardous Exporting Harm: The High-Tech Trashing of Asia Feb 25, 2002 by the Basal Action Network and the Silicon Valley Toxics CoalitionPictures universal waste (ca): Pictures universal waste (ca) Where Does E-Waste Come From?: Where Does E-Waste Come From? Exporting Harm: The High-Tech Trashing of Asia Feb 25, 2002 by the Basal Action Network and the Silicon Valley Toxics Coalition PCs are major contributors because they rapidly become obsolete E-Waste is generated by three major sectors in the U.S. Individuals and small businesses Large businesses, government, and institutions Original equipment manufacturers (OEMs)Slide8: Cadmium in batteries Lead in solder joints Plastics in cablesPWB Anatomy: PWB Anatomy How much E-Waste?: How much E-Waste? How Much E-Waste Generated: How Much E-Waste Generated 500 million U.S. computers 1997-2007 6.32 billion pounds plastics 1.58 billion pounds lead <13% reused or recycled ~3 million tons to landfills/year (1997) 130 million cell phones, batteries, chargers (65,000 tons/yr, 2005) 6000 obsolete PCs/day in California Potential $1 billion cleanup cost (over 5 years) No estimates on CRT to HD, flat screen TVspictures: Photo courtesy of Recycling Council of Ontario picturespictures: Photo courtesy of Recycling Council of Ontario picturesE-Waste Hazards: E-Waste Hazards Heavy metals (lead, mercury, cadmium) Batteries containing cadmium Cathode ray tubes with lead oxide & barium Brominated flame-retardants on printed circuit boards, cables and plastic casing. PVC-coated copper cables and plastic cases Mercury in switches and flat screens Poly Chlorinated Biphenyl’s (PCB’s) in older capacitors & transformers What Hazards Does e-Waste Present?: What Hazards Does e-Waste Present? Several pounds of toxic heavy metals in most computer systems Lead and cadmium in circuit boards and CRT monitors Mercury in switches and LCD monitors Cadmium in computer batteries Toxic metals can leach into groundwater when landfilled or improperly disposed ofWhat Hazards Does e-Waste Present? (cont.): What Hazards Does e-Waste Present? (cont.) PCBs in older transformers and capacitors Flame retardants on printed circuit boards, plastic casings, cables, and PVC cable insulation Toxic dioxins and furans released by burningHazardous Waste: Hazardous Waste Contains carcinogens… Catches fire easily Is reactive or unstable… Corrodes metal containers http://www.learner.org/exhibits/garbage/hazardous.htmlWhere Does E-Waste Go?: Where Does E-Waste Go? Storage Landfill & Incineration Reuse Domestic Recycling Prisons Export to Developing CountriesWhere Does E-Waste Go?: Majority of waste electronics disposed in landfills Heavy metals may eventually leach into groundwater CRTs banned from landfills in CA and MA 50 - 80% of waste electronics collected for recycling in the U.S. is exported overseas Most electronics recyclers export some portion of their waste electronics overseas Frequent destinations: developing countries Where Does E-Waste Go?Landfill Hazards: Landfill Hazards Leaking landfills Leaching into soil and groundwater Chemical reactions Vaporization Uncontrolled firesIncineration Hazards: Incineration Hazards Dioxin formation Heavy metal contamination Contaminated slag, fly ash, and flue gasesFate of Exported Waste Electronics: Only most valuable components reclaimed; other potentially recyclable materials discarded Components often physically dismantled by hand Some components (chips, connectors) processed in acid Handlers often lack proper protective equipment Leftover liquid dumped into water sources Fate of Exported Waste ElectronicsFate of Exported Waste Electronics (cont.): Open burning of wires and other electronics components Wire insulation contains PVC or flame retardants Non-recyclable materials dumped along waterways, in open fields, etc. Plastic that is impure, has unmatchable color, etc. Leaded CRT glass Burned or acid-treated circuit boards Fate of Exported Waste Electronics (cont.)Is Waste Hazardous (Ca)?: Is Waste Hazardous (Ca)? CA requires waste generators to determine Generally, yes if Toxic Ignitable Corrosive Reactive Special Procedures to determine determining LCD, plasma display hazardsClassification of Hazards: Classification of Hazards Hazardous Universal Carcinogen Toxic Hazards in E-Waste: Hazards in E-Waste E-Waste Derivatives: E-Waste Derivatives Discuss the issue of excess packaging. Get the kids thinking about why they have to have the toy that comes in three boxes instead of the one with a price sticker on it. Batteries Recycling Electronics: Recycling Electronics Obsolete electronics have low resale value Most contain hazardous substances And some valuable metals Recycling saves resources and the environment Hazardous Waste Solutions: Hazardous Waste Solutions Waste Management: Minimize Impact Waste Prevention: Minimize the Volume Reduce waste and pollution Reuse as many things as possible Recycle and compost as much waste as possible Chemically or biologically treat or incinerate Bury what is left http://www.learner.org/exhibits/garbage/hazardous.htmlIntegrated Waste Management: Integrated Waste Management Source Reduction Recycling Waste combustion and landfilling U.S. Environmental Protection Agency, Consumer Handbook for Reducing Solid Waste, www.epa.gov, 7-15-05 Four Basic Principles: Four Basic Principles Reduce Reuse Recycle Respond