Water pollution is a major problem faced by our world. The pollutants are discharged directly or indirectly into the water bodies. Some of the ways of preventing or treating water pollution are sewage treatment, industrial wastewater treatment, point source wastewater treatment, etc. This book includes some of the vital pieces of work being conducted across the world, on various topics related to water pollution, its control and treatments. It aims to serve as a resource guide for students and experts alike.