**Section 2: "Valorization of Waste Materials"**

Chapter 10: "Industrial Re-Use of Composites"

This chapter examines a method involving machining obsolete thermoset composite products into strips or flakes for re-use as reinforcing elements, which, when combined with fresh resin and fiber, enable the production of new components. This method has been proven in manufacturing retaining walls as well as guide beams for canals and bridge decking, all using strips or flakes from end-of-life composite products.

Chapter 11: "Phytomass-Derived Multifunctional Activated Carbon as a "Wonder-Material": A Paradigm Shift of Filth-to-Wealth"

This chapter explores the idea of recycling the renewables in nature phytomass for producing activated carbon that could find several applications, such as in catalytic supports, the removal of pollutants, gas storage, and so on. It also presents research insights into the identification of unexplored phytomass or wastes that could lead to carbon with novel properties.

Chapter 12: "A Zero-Waste Process for the Treatment of Spent Potliner (SPL) Waste"

This chapter presents a deep analysis of an environmentally friendly process to recover all valuable minerals contained in spent potliner such as graphite carbon and aluminum fluoride (AlF3) and production of sodium sulfate (Na2SO4) and gypsum (CaSO4) when H2SO4 is used as the leaching agent.
