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Green Chemistry- Preventing Pollution. Sustaining the earth. PowerPoint PPT Presentation


Green Chemistry- Preventing Pollution. Sustaining the earth. Sheri J. Tonn June 2008. Green Chemistry Award Winners. http://www.epa.gov/greenchemistry/pubs/pgcc/past.html. Benefits of the Chemical Industry. From: James Clark, 2004. Danger!. Pollution. Disease.

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Green chemistry preventing pollution sustaining the earth l.jpg

Green Chemistry- Preventing Pollution. Sustaining the earth.

Sheri J. Tonn

June 2008


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Green Chemistry Award Winners

  • http://www.epa.gov/greenchemistry/pubs/pgcc/past.html


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Benefits of the Chemical Industry

From: James Clark, 2004


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Danger!

Pollution

Disease

Depletion of natural resources

Waste Disposal

CHEMISTRY- A Dirty Word!

Toxic Emissions

Cancer

Land Fill

Accidents

From: James Clark, 2004


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What is Green Chemistry?

  • Green chemistry is the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances

  • Discovery and application of new chemistry/technology leading to prevention/reduction of environmental, health and safety impacts at source

  • It can be considered as a set of reductions:

Cost

Materials

Risk &

Reducing

Energy

Hazard

From: James Clark, 2004

Non-

Waste

renewables


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Research areas relevant to consumer products

Packaging & Plastics

Lubricants

Dyes & Pigments

Solvents

Fragrances & Perfumes

Pesticides

Adhesives

Food additives

Electronics

Textiles & Fabric Treatments

Preservatives

Flame Retardants

Surfactants

From: James Clark, 2004


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  • The Twelve Principles of Green Chemistry

  • Synthetic methods should incorporate all

    materials possible into the final product

  • Prevent rather than treat or clean up waste

  • Use and generate substances with little or

  • No toxicity

  • Preserve efficacy while reducing toxicity


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  • Reduce auxiliary substances

  • Recognize energy use for environmental and economic impacts and reduce

  • Raw materials should be renewable

  • Avoid unnecessary derivatives during synthesis

  • Use catalysts

  • Make non-persistent chemicals

  • Use real-time monitoring and process control

  • Minimize potential for accidents, releases, explosions, fires


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Green chemistry is:

  • Scientifically sound

  • Cost effective

  • Leads toward a sustainable earth


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Sources

  • James Clark, University of York, Green Chemistry and the Consumer Symposium, Powerpoint present., 2004

  • Green Chemistry Center of Excellence http://www.york.ac.uk/res/gcg/index.htm

  • US EPA Green Chemistry Site http://www.epa.gov/greenchemistry/

  • Zero Waste Alliance

    http://www.zerowaste.org/index.htm

  • Greening Schools – Illinois EPA and WMRC

    http://www.greeningschools.org


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