This document discusses green chemistry and efforts to reduce pollution through more sustainable chemical processes and products. It defines green chemistry as "the invention, design and application of chemical products and process to reduce or to eliminates the use and generation of hazardous substances." The document outlines 12 principles of green chemistry and provides examples of green chemistry innovations like the use of supercritical CO2 as a solvent. It also lists some of the world's greenest countries and cities based on environmental performance indices.

1. Will green Chemistry solve the
problem of pollution?
Dr. Anita S. Goswami-Giri
Department of Chemistry
B.N. Bandodkar College of Science
Thane-1
anitagoswami@yahoo.com

2. What is Green chemistry ?
“The invention, design and application
of chemical products and process to
reduce or to eliminates the use and
generation of hazardous substances”

3. Green Chemistry
Anastas, P. T.; Warner, J.C. Green Chemistry: Theory and Practice, Oxford University Press,1998.

4. What is Green Chemistry?
Benign
Disposal
Recycle/Re-use
Reduce -
Replace -
Hazardous materials, processes
Inefficient processes
Non-sustainable components
Chemical usage
Energy usage

5. Why now?
In 2005, Ryoji Noyori
1. Use of supercritical CO2 as a green
solvent,
2. Aq. Hydrogen peroxide for clean
oxidation
3. The use of hydrogen in a symmetric
synthesis.

6. To reduce

7. How green is my solvent?How green is my solvent?
Just because the solvent is non-toxic it does not
make the process “green”. Also need to consider;
• Energy (evaporation, pressurisation, stirring etc.)
• Recycling of solvent
• Solubility of solute
• Toxicity of any by-products
• Atom efficiency of process
• Product separation
• Does the solvent affect the product/package?

8. Ranking the green countries
Top 5 Bottom 5
1.Finland (AQ6,WQ 2 GH75) 137. Chad GH1)
2.Iceland 138.Burkina Faso
3.Norway (WQ1) 139.Sierra Leone
4.Sweden 140.Niger
5.Austria 141.Ethiopia (AQ126GH18)
*India & neighboring countries
66. Srilanka
84. China
104. India (AQ138,WQ137,GHG96)
108.Nepal
111.Bangladesh
115.Pakistan

9. 11 Greenest Countries on Earth in 2019
1.Iceland - Environmental Performance index of 93.5
2. Switzerland- Environmental Protection index of 89.1
3. Costa Rica- Environmental Protection Index of 86.4.
4. Sweden- Environmental Protection Index of 86.0.
5. Norway- Environmental Protection Index of 81.1
6. Mauritius- Environmental Performance Index of 80.6
7. France- Environmental Protection Index of 78.2
8. Austria- Environmental performance Index of 78.1
9. Cuba -Environmental Protection Index of 78.1
10. Colombia- Environmental Performance Index of 76.8
11. Finland-

10. The world’s Greenest, Most livable Cities
SN livable Cities SN livable Cities SN livable Cities
1 Copenhagen, Denmark:
Europe’s Most Sustainable
City
5 Curitiba, Brazil: A City
Utilizing the Power of
recycling
9 Singapore: The Greenest City in Asia
2 Amsterdam, Netherlands:
The City of Bikes
6 Reykjavik, Iceland: A City
Aiming to Move Away from
Fossil Fuels
10 Cape Town, South Africa: A City
Practicing Effective Waste
Management Strategies
3 Stockholm, Sweden: The
Cleanest City in Europe
7 Portland, Oregon: A City
that Teaches the Citizens to
Embrace Nature
11 Helsinki, Finland: The Nature Capital
of the Entire World
4 Vancouver, Canada: A
City with Lowest Carbon
Emissions
8 San Francisco, California:
The First American City to
Ban Plastic Water Bottles
12

11. Can u hear the green frog call?

12. Polylactic Acid for Plastics Production
Corn Starch
Unrefined
Dextrose
PolymerPolymer
ProductionProductionPLA
Lactide
MonomerMonomer
ProductionProduction
Lactic AcidFermentationFermentation
Fiber
Film
Thermoforming
Bottle
Woven
Non-woven
Etc.
Polymer
Modification
ApparelFilms
Polymer Grades

13. Non-
Volatile
Solvents
Volatile
Organics and
Hazardous
Solvents
Solventless
Systems
Supercritical
Systems
Water
Other
Benign
Solvents
Solvent
Solutions

14. Greening of Academic Research

15. Synthetic Organic Chemicals
THE PRODUCTSPharmaceuticals
Dyes
Sunscreen agents
Toiletries and
fragrances
NEED THE CHEMISTRY
Coupling Reactions
often based on
expensive and toxic
precious metals
Oxidation
- often based on
stoichiometric toxic
metallic reagents and
low atom efficiency
processes
Halogenation
using dangerous
reagents and often
with very low atom
efficiencies
Friedel-Crafts
Chemistry based on
hazardous acidic
reagents and
dangerous waste
BUT NOT THE PROBLEMS!
GREEN CHEMISTRY

16. The Future Chemical Industry
??
Past
Future
Present

17. Summary: Opportunities & Challenges
• Global growing
requirement
• Demand for greener
products
• Proven ability of industry
to adapt
• Signs of support from
RDAs & Government
• Improving co-operation
with stakeholders
• Sustainable development
• EU regulation
• Competition from Asia
• High energy costs
• High oil prices
• Cost & technology
barriers for renewables
• Declining skill base
• Consumer pressure to
reduce costs
• Reputation

18. Summing up…..

19. Problem?
Improved Chemical
Processes and
Products for Industry
> 20 expert staff
available to
support projects
Dedicated
Commercial
Manager
Excellent
research
facilities and
equipment
Flexible
range of
services
Funding and
legislative
expertise
Green Chemistry CIC Expertise
Researchers
assigned
specifically to
projects

20. Highlights from the newsletter
Polychromic plastics: one
chemical, many colours
Corn cob packaging
Stopping corrosion -
naturally
Greener wood adhesives
Green dyeing in any colour
WEEE and RoHS
explained & how
Green Chemistry
can help
Unwrapping the
packaging optionsFluorine takes the fizz out
of sparkling wine
Wanted: solutions
and customers for
UK farming
The latest on the EU’s
proposed chemicals
legislation REACH

21. References
• Blackburn R.S. Burkinshaw S.W. Green Chemistry,2002 4(1)47.
• Reader’s digest, October 2007 ,P.107.
• Green Chemistry, July 16,2001 79 (29) P.27-34.
• Green Chemistry, June 30,2003 26 P.30-35.
• Current Science,2000Dec.25 79(12)1662.
• Current Science,2005Dec.10 89(11)1788.
• dtsc.ca.gov/pollution/prevention/greenchemistry.
• www.chemsoc.org/gcntciconfernce.
• www.treehugger.com
• https://www.acs.org/.../greenchemistry/principles/12-principles-of-green-chemistry.ht...
• Anastas, P. T.; Warner, J.C. Green Chemistry: Theory and Practice, Oxford University Press,1998.