(405a) Overview of Waste Valorization Concepts and Principles

AIChE defines waste valorization as “the process of reusing, recycling or composting waste materials and converting them into more useful products including materials, chemicals, fuels or other sources of energy”. “Waste-to-energy” aspects are becoming more prominent due to the rapid depletion of natural resources and increase in waste generation.

Waste valorization is the process of taking waste and changing it into constituent parts that can be utilized, and have value beyond the cost of the energy needed to process the transformation. The concept of waste valorization ties in with recycling and reuse technologies. Namely “enhancing the value”, valorization is a process of changing residues into products at a much greater value. The results can include quality chemicals, materials, fuels, and energy, as well as many other products beneficial for a local economy.

It requires not only technical knowledge but also a global approach to accomplish this goal. Residues and products often need to be seen from a wider perspective that just one industry. Creating a closed system of valorization, industries may need to communicate with each other in the global economy pattern.

This presentation presents a technical overview on waste valorization addressing the principles and concepts involved.