In an era where sustainable manufacturing and material optimization are paramount, this book presents a comprehensive investigation into the utilization of Linz-Donawitz (LD) sludge as a reinforcing material in polymer composites. Through rigorous statistical approaches, including Taguchi experimental design and response surface methodology, this work bridges a critical gap in industrial waste management and advanced materials development. The book meticulously examines the physical, mechanical, and tribological properties of LD sludge-filled epoxy and polypropylene composites, offering...