Organic waste refers to the waste that can be broken down into carbon dioxide, methane, water or simple organic molecules by the action of micro-organisms or other living things. This is possible through the processes of anaerobic digestion, aerobic digestion or composting. Some common examples of organic waste are manure, sewage, slaughterhouse waste, human waste, green waste, food waste, sewage sludge, biodegradable plastics and paper waste. Organic waste materials along with other wastes are disposed in landfills and incinerators. Since they are biodegradable they can also be used for land application and composting. Certain organic substances such as cardboard and paper are used for recycling. Biogas can also be produced from organic waste and used as a source of heat and electricity. This book studies, analyzes and upholds the pillars of organic waste management and its utmost significance in modern times. It is compiled in such a manner, that it will provide in-depth knowledge about the theory and practice of this area of study. It aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.