This presentation briefly describes about sustainable chemistry, sustainable assessment, and the essentials of sustainable chemistry.

1. Sustainable Chemistry
Pratap Chhotaray

2. Way Forward
1. Do not intervene with the inherently complex Ecosystem in anyway
2. Intervene in a balanced way…. In a “Sustainable way”
What is Sustainability?
How to obey Gaia Theory?
• It is the ability to sustain constantly

3. Sustainability
In today’s time
• it means co-existence of Human civilization and Biosphere
• Judicious usage of resource
• Maintain harmonization
• Healthy ecosystem and environment
• Care for future generations

4. Need of Sustainability
Why we should worry about sustainability?
• To maintain a healthy life
• To avoid global warming and climate change
• To save resources for our future generations
• To save our nature and environment
• To get rid of toxicity and hazards

5. Sustainable Chemistry
It is the branch of chemistry that deals with;
• Development of products and processes that minimize or
eliminate the use and generation of hazardous substances
• Designing inherently safer chemicals/molecules
• Follow the principles of Green chemistry

6. Sustainable Chemistry
Ecological
Social
Economic
Viable Bearable
Equitable
Sustainable
Life
Environment
Earth

7. Sustainable Assessment
• SA: A complex appraisal mechanism
• SA also has cultural element
• SA usually conducted to
a) Support decision making
b) Policy development
• Has multidisciplinary aspects
a) Environmental
b) Economic
c) Social

8. Need of Sustainable Assessment
• SA helps policy maker to decide what they
should and shouldn’t do in order to make
society more sustainable
• It helps to plan the activities for optimal
contribution to sustainable development
Objective of SA: To meet the need of present generation without
compromising the ability of future generations to meet their
own needs
Worldwide Lithium reserve as of 2019

9. Sustainable Assessment
• SA evaluation requires integrating sustainability principles, thresholds, and
targets
• Approach SA as inter- and trans-disciplinary rather multidisciplinary

10. Challenges in Sustainable Assessment
• No clear distinction between scientific evaluation and policy making on SA
• In a trans-disciplinary setup it is difficult to predict the option on which
sustainable development would proceed
• In science-poly interface, sometimes it is difficult to project the direction
particularly when conflicting objectives are involved
• Fully understanding of this complex dynamics is require for successful
implementation of SA

11. Sustainability Assessment Procedure

12. Sustainability Assessment

13. Essentials of Sustainable Chemistry
• There are numerous benefits of sustainable chemistry/green chemistry
• Human health
• Clean air
• Clean water
• Increased safety of workers in
chemical industry
• Safer consumer products
• Safer food
• Less exposure to toxic chemicals as
endocrine
disrupter

14. Essentials of Sustainable Chemistry
• Environment
• Green chemicals either degrade to
innocuous products or are recovered for
further use
• Plants and animals suffer less harm from
toxic chemicals in the environment
• Lower potential for global warming, ozone
depletion, and smog formation
• Less chemical disruption of ecosystems
• Less use of landfills,
especially hazardous
waste landfills

15. Essentials of Sustainable Chemistry
• Economy and business
• Allow replacement of a purchased
feedstock by a waste product
• Reduced waste, eliminating costly
remediation, hazardous waste disposal,
and end-of-the-pipe treatments
• Fewer synthetic steps, often
allowing faster manufacturing of
products, increasing plant capacity,
and saving energy and water
• Higher yields for chemical reactions, consuming
smaller amounts of feedstock to obtain the same
amount of product

16. Essentials of Sustainable Chemistry
• Continued….(Economy and business)
• Improved competitiveness of chemical manufacturers and their customers
• Increased consumer sales by displaying a safer-product label
• Reduced manufacturing plant size or footprint through increased throughput
• Reduced use of petroleum products, slowing their depletion and avoiding
their hazards and price fluctuations
• Better performance so that less product is needed to achieve the same function

17. Role of chemistry in Sustainability
• Year long event was organized by IUPAC and UNESCO
• International Year of Chemistry:
• The UN resolution was made to highlight the
contribution of chemistry in Sustainable
development
• To encourage chemists to play a vital role in sustainable
development, International Organization for Chemical
Sciences in Development coined a fictional new element
“Su” that was published in a book during IYC2011
2011
• The theme of IYC2011 was "Chemistry–our life, our future."

18. Role of chemistry in Sustainability
• World economic forum coined the term “Energy Trilemma” to summaries the
difficulty in maintaining secure, reliable energy supplies, which are not only
affordable and accessible for all, but also environmentally sustainable
• For Energy
• Chemistry has an important role to play in developing catalysts, materials, sensors,
and formulations etc. in a sustainable way
• Solar Energy: A Sustainable energy source
• PV Solar cell Vs DSSC

19. Role of chemistry in Sustainability
• Globally 140 billion tons of agricultural biomass generated per year
• Utilizing chemistry, these biomass can be value added to produce different
products
• For Agriculture
• Bio-diesel
• Bio-ethanol (C2H5OH)
• Syngas (CO + H2)
• Bio-gas
• More dependency on
renewable agricultural
biomass reduces the
dependency over non-
renewable fossil fuel

20. Role of chemistry in Sustainability
• Chemistry plays a great role in the knowledge about soils, plant formation and
growth, seed development and inputs needed to increase production and
therefore its importance in sustainable agriculture..
• For Agriculture
• Biopesticides are a certain type of natural
product that are used to control pests, plant
diseases, and weeds.
• Chemical pesticides such as DDT, faced government
phase-outs due to their toxicity, persistence,
insolubility, and pest resistance
• Development of crop protection green chemicals