E waste 33

E waste 33

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  ELECTRONI C WASTE Parminder Kaur
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  Content What is ElectronicWaste? Electronic Equipments in E-Waste How these become E-Waste? Generators of E-Waste Why E-Waste a problem? Constituents of E-Waste E-Waste Disposal E-Waste in INDIA E-Waste in CHINA WEEE Directive What should be done?
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  What is ElectronicWaste? It is the term used to describe old, end-of-life or discarded appliances using electricity and battery.
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  Electronic Equipments Computers Mobile Air Phones Conditioner Laptops Telephone Irons Drill Machines Treadmills Printers
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  How these becomeE-Waste? Changes and Advancement in technology Changes in fashion, style, and status Changing configuration Attractive offers from manufacturers Small life of equipments
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  Generators of E-Waste Smallbusiness and House hold. Large businesses, Institutions and Government offices. Equipment manufacturers.
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  Some examples Cellphone upgrades Digital TV Conversion Software upgrades Can't change the battery in your iPod Disposable printers
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  Why E-Waste AProblem? Composed of Hazardous Materials Products are quickly obsolete and discarded Electronic products are difficult to recycle Discarded electronics are managed badly Most e-waste goes to Landfills Most recyclers don’t recycle , they export Prison recycling : High Tech Chain Gang
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  Constituents Of E-Waste Hazardousmaterials Valuable materials
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  Source of e- Constituent Health effects wastes (Hazardous) printed circuit Lead (PB) •Damage to boards, computer nervous system monitors and kidney •Affects brain development of children. Chip resistors and Cadmium (CD) •Accumulates in semiconductors kidney and liver. •Causes neural damage.
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  Relays and Mercury (Hg) Chronic damage switches, printed to the brain. circuit boards Respiratory and skin disorders Motherboard Beryllium (Be) lung cancer Front panel of Barium (Ba) Muscle CRTs. weakness; Damage to heart, liver and spleen BACK
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  Valuable Materials Source ofe- Constituent Uses wastes (Valuable) Cable, Housing Plastics Insulation Funnel glass in Lead, gold Metal joining, CRTs, PWB Connectivity Housing, PWB, Mercury, Zinc Batteries, CRT switches Housing, CRT, Aluminum, Silver Conductivity, PWB, Copper, iron magnetivity connectors
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  Waste Hierarchy refers to the "3 R’s" reduce, reuse and recycle Its aim is to extract maximum benefits from products and to generate the minimum amount of waste.
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  E-Waste Disposal Methods  Recycle  Landfill  Incineration  Reuse
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  E-Waste Recycling Definition:- Recycling isdefined as the assembling, developing, promoting, or buying of new products, which are prepared from waste materials.
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  Steps in Recycling Dismantlingof E-Waste Removal of hazardous materials such as PCB, HG, removal of plastic etc. Strong acids are used to remove valuable metals such as gold, lead, copper etc.
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  Methods for recycling Consumerrecycling Donation Take back Exchange Corporate recycling
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  Advantages Recycledmaterials can be used in developing new equipments Valuable Materials are retrieved Helps environment by avoiding pollution
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  Land filling Definition:- Land fillis also known as dump, is a site for the disposal of waste materials by burial and is the oldest form of waste treatment.
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  Disadvantages Metalslike mercury, cadmium, lead leaches into the soil and ground water making them polluted Requires large amount of space It is not a environmentally sound treatment
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  Incineration Definition:- It is acontrolled and complete combustion process, in which the waste material is burned in specially designed incinerators at a high temperature (900- 1000oC). Incinerator
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  Advantages Disadvantages Reduction of waste Emission of harmful volume gases and residues Utilization of energy of Emission of cadmium combustible substances and mercury hazardous substances are converted into less hazardous substances
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  Re-Use Definition:- It constitutes directuse or use after slight modifications to the original functioning equipment.
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  Advantages Electronic equipmentslike computers, cell phones etc. can be re-used. This method also reduces the volume of e-waste generation. no wastage of time and money
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  E-Waste in INDIA over 2 million e-waste is generated every year Harmful techniques like burning wires are common practice in the informal recycling sectors in big cities in India.
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  Recycle Steps inINDIA Manual Dismantling Refining and conditioning Solid waste is deposited in a municipal landfill.
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  E-Waste in CHINA In 2004, China discarded  4 million refrigerators  5 million TV sets  5 million washing machines China is receiving 90% e-waste from other countries.
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  WEEE Directive Waste Electricaland Electronic Equipment Directive WEEE Symbol
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  WEEE Directive introduced in January 2007. aims to reduce the amount of electrical and electronic equipment being produced to encourage everyone to reuse, recycle and recover it. WEEE Symbol
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  WEEE Categories Large householdappliances Lighting Equipment Electric and Electronic Tools Toys, sports Equipment IT and telecommunications equipment Office, Information & Communication Equipment Entertainment & Consumer Electronics Medical devices
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  Did you know? The average lifespan of computers has dropped from 6 years in 1997 to just 2 years in 2005. Mobile phones have a lifecycle of less than two years in developed countries. 183 million computers were sold worldwide in 2004 - 11.6 percent more than in 2003.
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  674 million mobilephones were sold worldwide in 2004 - 30 percent more than in 2003. By 2010, there will be 716 million new computers in use. There will be 178 million new computer users in China, 80 million new users in India.
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  What should bedone? Proper laws and policies should be made Awareness among consumers and manufacturers Recycling should be preferred Products should be made recyclable Make usage of recycled products do not throw away old equipments