Transcript Green Chemistry - Pacific Lutheran University

Green ChemistryPreventing 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
Depletion of
natural
resources
Waste Disposal
Toxic
Emissions
CHEMISTRY- A
Dirty Word!
Cancer
Accidents
Land
Fill
From: James Clark, 2004
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
Risk &
Hazard
Materials
Reducing
Energy
From: James Clark, 2004
Waste
Nonrenewables
Packaging &
Plastics
Lubricants
Dyes & Pigments
Solvents
Fragrances &
Perfumes
Food additives
Pesticides
Research areas
relevant to consumer
products
Adhesives
Electronics
Flame
Retardants
Preservatives
Textiles & Fabric
Treatments
Surfactants
From: James Clark, 2004
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

 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
Green chemistry is:
 Scientifically sound
 Cost effective
 Leads toward a sustainable earth
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