Sunday, July 12, 2009

E-waste management

Sorry guys this time ........It is not technology related.......I want to make something usefull to our society.I think this topic (e-waste management) is very valuable and make some impression on people since it is simple to present and we must aware about this problem

Electronic waste, e-waste, e-scrap, or Waste Electrical and Electronic Equipment (WEEE) describes loosely discarded, surplus, obsolete, broken, electrical or electronic devices. The processing of electronic waste in developing countries causes serious health and pollution problems due to the fact that electronic equipment contains some very serious contaminants such as lead, cadmium, beryllium and brominated flame retardants. Even in developed countries recycling and disposal of e-waste involves significant risk for examples to workers and communities and great care must be taken to avoid unsafe exposure in recycling operations and leaching of materials such as heavy metals from landfills and incincerator ashes.

Definition

"Electronic waste" may be defined as all secondary computers, entertainment device electronics, mobile phones, and other items such as television sets and refrigerators, whether sold, donated, or discarded by their original owners. This definition includes used electronics which are destined for reuse, resale, salvage, recycling, or disposal. Others define the reusables (working and repairable electronics) and secondary scrap (copper, steel, plastic, etc.) to be "commodities", and reserve the term "waste" for residue or material which was represented as working or repairable but which is dumped or disposed or discarded by the buyer rather than recycled, including residue from reuse and recycling operations. Because loads of surplus electronics are frequently commingled (good, recyclable, and nonrecyclable), several public policy advocates apply the term "e-waste" broadly to all surplus electronics. The United States Environmental Protection Agency (EPA) includes to discarded CRT monitors in its category of "hazardous household waste". but considers CRTs set aside for testing to be commodities if they are not discarded, speculatively accumulated, or left unprotected from weather and other damage.

Debate continues over the distinction between "commodity" and "waste" electronics definitions. Some exporters may deliberately leave difficult-to-spot obsolete or non-working equipment mixed in loads of working equipment (through ignorance, or to avoid more costly treatment processes). Protectionists may broaden the definition of "waste" electronics. The high value of the computer recycling subset of electronic waste (working and reusable laptops, computers, and components like RAM) can help pay the cost of transportation for a large number of worthless "commodities".

Presentation Links

Click here to download the power point presentation

Wikipedia Link for e-waste management Click here

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