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ContentsWhat is chemistry?What are wastes?Pollution?Problems!Solutions!What is Green Chemistry?Effects!Principles!...
Social Image Of ChemistryThe “Ideal Sustainable Product”                           3
Societal Image ofChemistry• Chemistry was once viewedas a field of innovationresulting in medicalbreakthroughs and modernc...
The Ideal “Sustainable”Product Consumable - compostable,       biodegradable Stays in Technical Loop -product of service...
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Historical approch    to Environmental problems….Variety of Chemicals Used in Cities….                             7
Historical Approach to EnvironmentalProblems• Waste treatment, control, anddisposal; pollutantmonitoring; hazardous waste ...
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Command and control cost to Industry  Increase in Environmental laws       Chemical releases                           10
“Command and Control”      Cost to Industry• Industry spent $115 billion in1992 on waste treatment, control,and disposal.•...
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Pollution prevention act 1990                         14
• Pollution Prevention can beaccomplished by several approaches:– Inventory controls.– Process controls.– In-process recyc...
•Paul Anastas                16
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Green ChemistryGreen Chemistry is the design              of   chemical products and       processes that reduce or elimin...
Effect graph 1Effect graph 2Effect graph 3                  19
Chemistry and Responsible Care        Good, but Good Enough?                   20
Chemistry and Responsible Care   Good, but Good Enough?                         21
Chemistry and Responsible CareGood, but Good Enough?                    22
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1. Prevention of waste2. Atom Economy3. Less Hazardous Chemical Synthesis4. Designing Safer Chemicals5. Safer solvents and...
Atom Economy               25
Green Chemistry In  Chemical Manufacturing• Create new ways to make desiredmaterialsdifferentfeedstocks, different pathway...
Green Chemistry In       Non-Chemical Manufacturing• Identify materials that are unsustainable andphase them out• Identify...
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Benefits of Using Biomass           • Renewable Feedstock• Contributes no net CO2 to the atmosphere  • Conserves fossil fu...
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Green Chemistry at Patagonia-     Committed to the Core!• PET  from recycled 2-liter soda bottles are  used as the base ma...
38
Summary• Green Chemistry provides a technical solution tomany environmental problems• Effective due to design stage effort...
Parting thought...“We   do so much to prepare our             childrenfor the future, but are we doing              enough...
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Green chemistry

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Green chemistry

  1. 1. 1
  2. 2. ContentsWhat is chemistry?What are wastes?Pollution?Problems!Solutions!What is Green Chemistry?Effects!Principles!Uses of Green Chemistry?Pathing Through! 2
  3. 3. Social Image Of ChemistryThe “Ideal Sustainable Product” 3
  4. 4. Societal Image ofChemistry• Chemistry was once viewedas a field of innovationresulting in medicalbreakthroughs and modernconvenience.• Chemistry is now viewed bymany as fouling the 4
  5. 5. The Ideal “Sustainable”Product Consumable - compostable, biodegradable Stays in Technical Loop -product of service, reusable,recyclable Minimized hazard in productand manufacturing process.Hazardincludes human health, safetyand ecological harm - Green 5Chemistry
  6. 6. 6
  7. 7. Historical approch to Environmental problems….Variety of Chemicals Used in Cities…. 7
  8. 8. Historical Approach to EnvironmentalProblems• Waste treatment, control, anddisposal; pollutantmonitoring; hazardous waste sitecleanup.• Development of standards foremissions to air,releases to water, and disposal byland, as well asregulation of these standards.• “Command and Control. 8
  9. 9. 9
  10. 10. Command and control cost to Industry Increase in Environmental laws Chemical releases 10
  11. 11. “Command and Control” Cost to Industry• Industry spent $115 billion in1992 on waste treatment, control,and disposal.• It was estimated at that time thatit would cost as much as $700billion to clean up existinghazardous waste sites.• These costs, and the costsassociated with 11
  12. 12. 12
  13. 13. 13
  14. 14. Pollution prevention act 1990 14
  15. 15. • Pollution Prevention can beaccomplished by several approaches:– Inventory controls.– Process controls.– In-process recycling.– Housekeeping changes.– Green Chemistry 15
  16. 16. •Paul Anastas 16
  17. 17. 17
  18. 18. Green ChemistryGreen Chemistry is the design of chemical products and processes that reduce or eliminate the use and/or generation of hazardous 18 substances.
  19. 19. Effect graph 1Effect graph 2Effect graph 3 19
  20. 20. Chemistry and Responsible Care Good, but Good Enough? 20
  21. 21. Chemistry and Responsible Care Good, but Good Enough? 21
  22. 22. Chemistry and Responsible CareGood, but Good Enough? 22
  23. 23. 23
  24. 24. 1. Prevention of waste2. Atom Economy3. Less Hazardous Chemical Synthesis4. Designing Safer Chemicals5. Safer solvents and auxiliaries6. Energy efficient7. Renewable feedstocks8. Reduce derivatives9. Catalysis10. Design for degradation11. Real time analysis for pollution prevention12. Safety 24
  25. 25. Atom Economy 25
  26. 26. Green Chemistry In Chemical Manufacturing• Create new ways to make desiredmaterialsdifferentfeedstocks, different pathways• Identify desired performancecharacteristicsand create new materials 26
  27. 27. Green Chemistry In Non-Chemical Manufacturing• Identify materials that are unsustainable andphase them out• Identify benign materials that already existand select them• Work with vendors and manufacturers todevelop new benign and environmentallyappropriate materials. Competitive edge! 27
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  33. 33. Benefits of Using Biomass • Renewable Feedstock• Contributes no net CO2 to the atmosphere • Conserves fossil fuel leading to a secure domestic supply• Platform for making an array of chemicalproducts from what is otherwise considered waste 33
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  36. 36. 36
  37. 37. Green Chemistry at Patagonia- Committed to the Core!• PET from recycled 2-liter soda bottles are used as the base material for Synchilla, a signature Patagonia fleece• Eliminated chlorine bleach in fabric• Reduced formaldehyde use• Elimination of azo dyestuffs• Elimination of PVC in luggage fabrics, plastic components and clothing labels• Organic Cotton-using a renewable feedstock in a more sustainable way 37
  38. 38. 38
  39. 39. Summary• Green Chemistry provides a technical solution tomany environmental problems• Effective due to design stage efforts, starting at themolecular level lets you design out the hazardousproperties and design in environmentally appropriatefeatures.• A systematic approach can ensure effectiveapplication.• Why Green Chemistry? Because we can…. 39
  40. 40. Parting thought...“We do so much to prepare our childrenfor the future, but are we doing enough to prepare the future for our children?” --Larry Chalfan 40
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