Green science refers to designing eco-friendly products and processes that reduce or eliminate hazardous pollutants. Green engineering applies financially and technologically feasible solutions to decrease pollution and improve energy efficiency while protecting human health. It follows principles like conserving ecosystems, using life cycle thinking, and ensuring materials and energy are safe. Green engineering involves four basic approaches: waste reduction, materials management, pollution prevention, and process enhancement to improve sustainability.

1. GREEN SCIENCE & ENGINEERING

2. CONTENTS:
What is Green science?
What is Green engineering?
Principles of Green engineering.
Basic approaches.
Achieving sustainability.
Conclusion.

3. WHAT IS GREEN SCIENCE?
• Green science refers to the design of various products and processes that reduce or
eliminate the use and generation of hazardous and polluting substances.
• It is the application of eco-friendly thinking to scientific disciplines.
• Why it is required?

4. WHAT IS GREEN ENGINEERING?
• Green engineering approaches the design of products & processes by applying
financially & technologically feasible solutions in a way that simultaneously
decreases pollution, improved uses of energy as well as protecting human health.
• It is simply an application of green science.

5. PRINCIPLES OF GREEN ENGINEERING
Conserve & improve natural eco systems.
Use life cycle thinking.
Ensure that all material & energy inputs & outputs are safe and benign.
Minimize depletion of natural resources.
Strive to prevent waste.
Create engineering solutions beyond current & dominant technologies.
Improve, innovate, invent technologies to achieve sustainability.
Actively engage communities and public in development of engineering solutions.
To create awareness among people regarding environmental issues.

6. BASIC APPROACHES
• Green engineering involve four basic approaches to improve processes and
products.
• They are:
Waste reduction.
Materials management.
Pollution prevention and,
Process enhancement.

7. WASTE REDUCTION

8. MATERIALS MANAGEMENT

9. POLLUTION PREVENTION

10. PROCESS ENHANCEMENT

11. ACHIEVING SUSTAINABILITY

12. CONCLUSION
In today’s environment, it’s a matter of how long we live. Because our earth is in a
critical position due to man made disasters. So, “GREEN ENGINEERING” should
come into act to prevent & overcome environmental problems.
To overcome environmental pollution, the product should be ,
“REDUCE - REUSE – RECYCLE”

14. PRESENTATION BY
• T.HARIKIRAN.
• P.V.DORABABU.