The rise in population and industrialization has also resulted in increased amounts of wastage. Some of these also result in environmental and health hazards. Waste resources are the byproducts of different processes such as industrial waste, farmland waste, kitchen waste, human and animal waste. Tackling this enormous amount of waste requires special techniques, methods and classification of these resources into different categories. Different approaches, evaluations, methodologies and advanced studies revolving around waste recycling and management have been presented in this text. It encompasses contributions of experts from across the globe that discuss the most vital concepts and emerging trends with a global perspective. From theories to research to practical applications, case studies related to all contemporary topics of relevance have been included in this book. It will provide comprehensive knowledge to the readers. This book will serve as a valuable source of reference for environmentalists, ecologists, conservationists, engineers, academicians and students.