The book "Pyrolysis-Derived Materials for Water Purification Technologies" provides an in-depth exploration of sustainable solutions for water purification in the circular economy. The book focuses on the use of materials that are derived from pyrolysis, a process that converts waste materials into useful products, as a potential solution for water treatment. The book discusses the advantages of pyrolysis-derived materials and their effectiveness in removing pollutants from water. It also examines the challenges and limitations of using these materials, as well as the potential for scaling up their production for industrial and commercial applications. The book is a valuable resource for researchers, engineers, and policymakers working in the fields of water treatment and sustainability.