With the onset of industrialization era and urbanization of the countries, human kind became one of the biggest polluter, contributing towards the generation of large heaps of waste and unsanitary conditions. To keep this planet clean and habitable waste management is the need of the hour. It is the sum of all the activities involved in collection, transport, treatment and recycling waste material. This is a complex procedure as there are different categories of waste such as solid, liquid, biodegradable and non-biodegradable. Each of these requires different methodologies for disposal. Most of the topics introduced in this book cover new techniques and applications related to management of waste. The various studies that are constantly contributing towards advancing technologies and evolution of this field are examined in detail. The readers would gain knowledge that would broaden their perspective about this field. This book includes contributions of international experts and scientists which will provide innovative insights into this field.