Waste Management

Download Computers and the Environment: Understanding and Managing by Ruediger Kuehr, German T. Velasquez (auth.), Ruediger Kuehr, PDF

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By Ruediger Kuehr, German T. Velasquez (auth.), Ruediger Kuehr, Eric Williams (eds.)

Personal pcs have made existence handy in lots of methods, yet what approximately their affects at the setting because of creation, use and disposal? production desktops calls for prodigious amounts of fossil fuels, poisonous chemical compounds and water. speedy advancements in functionality suggest we regularly purchase a brand new desktop each 1-3 years, which provides as much as mountains of waste desktops. How should still societies reply to deal with those environmental affects?
This quantity addresses the environmental affects and administration of desktops via a suite of analyses on matters starting from environmental evaluation, applied sciences for recycling, customer behaviour, recommendations of machine production corporations, and govt regulations. One end is that extending the lifespan of pcs (e.g. via reselling) is an environmentally and economically potent approach that merits extra cognizance from governments, corporations and the overall public.

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Extra info for Computers and the Environment: Understanding and Managing their Impacts

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Etching is either done using solvents that attack the layer to be patterned, but not the photoresist, or by bombardment with particles that chip away at both the layer to be carved and the photoresist layer. The final step is stripping, the removal of the nowunneeded photoresist, through a bath in a solvent that dissolves photoresist but not other layers on the wafer. Between process steps, wafers often need to be cleaned with ultra-pure water, acids, or other agents. The desired stack of layers is made by repeated application of the cycle (layering, doping/oxidation, and patterning), using different masks for each layer.

A. Tolle, B. W. Cornaby, H. C. Latham, C. L. Harrison, T. L. Boguski, R. G. Hunt and J. D. Sellers. 1993. 245). S. Environmental Protection Agency. © Kluwer Academic Publishers and United Nations University 2003 . 42 3. Environmental Impacts in the Production of pes problems. In addition, there may be environmental benefits associated with the use of a product. For instance, if communicating via the Internet replaces a degree of automobile use (by telecommuting to work, for instance), this could reduce energy consumption and transport;elated emissions.

Chung. 1999. Characterization oflead leachability from cathode ray tubes using the toxicity characteristic leaching procedure. Report #99-5, December 1999. Florida Center For Solid And Hazardous Waste Management. S. Office of Technology Assessment. 1992. Green products by design: Choices for a cleaner environment (OTA-E-541). S. Government Printing Office, October 1992. Vigon, B. , D. A. Tolle, B. W. Cornaby, H. C. Latham, C. L. Harrison, T. L. Boguski, R. G. Hunt and J. D. Sellers. 1993. 245).

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