This book reviews the diversity of biowaste and the potential uses for bulk, fine and special chemicals. It describes technologies already established as well as those under development, and also focuses on economic and environmental sustainability. Expert contributions explore the key aspects of biorefineries, from biobased technologies, platform chemicals and pretreatment to special chemicals, biofuels, market dynamics, and ecological evaluation. Each chapter offers valuable insights and in-depth knowledge, ensuring that readers gain a comprehensive understanding of this evolving field. In this book, particular attention is given to the essential certifications and quality standards that ensure the sustainability and reliability of biomass-based chemicals. Readers will also find about topics such as:SynGas as a versatile platform chemicalmicrobial electrochemical technologiesvaluable aromatics from ligninbiogas as a renewable energy sourcethe critical role of enzymes in the pretreatment processinnovative biotechnological processes for sugar caneLife Cycle Assessment (LCA) methodologies and their application inevaluating the ecological impact of biorefineries. Given its breadth, this book is a valuable resource for academics, researchers, industry professionals, and policymakers working in the fields of agriculture, forestry, biomass processing, waste management and the chemical industry, interested in the development of new value chains from biowaste to chemical products.