Principles of Green Chemistry

12 Additional Principles for Green Chemistry.

• 8. Consider the effect of the overall process on choice of chemistry
• 9. Help develop and apply sustainable measures
• 10. Quantify and minimize use of utilities and other inputs

12 Additional Principles for Green Chemistry.

• 11. Recognize where operator safety and waste minimization may be compatible
• 12. Monitor, report and minimize wastes emitted to air, water, and solids from experiments or processes

Definition of Green Engineering Abraham, M., 2004, Environ. Prog. 23 (4), p. 266.

• “The design, commercialization, and use of processes and products, which are feasible and economical while minimizing (1) generation of pollution at the source and (2) risk to human health and the environment.”

12 Principles of Green Engineering Anastas, P. and J.B. Zimmerman, Environ. Sci. Techol., vol 37 (5), p. 95A.

• Designers need to strive to ensure that all material and energy inputs and outputs are as inherently nonhazardous as possible.
• 2. It is better to prevent waste than to treat or clean up waste after it is formed.

12 Principles of Green Engineering

• 3. Separation and purification operations should be designed to minimize energy consumption and materials use.
• 4. Products, processes, and systems should be designed to maximize mass, energy, space, and time efficiency.

12 Principles of Green Engineering

• 5. Products, processes, and systems should be “output pulled” rather than “input pushed” through the use of energy and materials.
• 6. Embedded entropy and complexity must be viewed as an investment when making design choices on recycle, reuse, or beneficial disposition.