Wastewater management is a procedure that is used to remove contaminants from sewage or waste water and convert it into an effluent that can later be reused. The main objective of waste water treatment is disposing or reusing water. The treatment of wastewater takes place in wastewater treatment plants where the pollutants are broken down or removed. The wastewater treatment process involves various steps like phase separation, sedimentation, filtration, oxidation and polishing. The biological processes which are used for treating wastewater include aerated lagoons, activated sludge and slow stand filters. The treatment of wastewater also involves the separation of solids from liquids, by the process of sedimentation. This book provides comprehensive insights into the field of wastewater management as well as its theory and practice. It also presents researches and studies performed by experts across the globe. This book will serve as a valuable source of reference for graduate and post graduate students.