This book seeks to explore the critical but very influential challenge of wastewater management from a global perspective and to specifics in SSA region where the subject is under researched. The book will detail on the production trends, the treatment approaches used currently and those proposed in a circular economy among other management approaches that can enhance sustainable wastewater management while prioritizing reuse and recovery of the resource. The book is a need of the hour since only a few studies have addressed the production trends and management of wastewater in SSA region as Onu et al. (2023) noted. The aim is to close the research gap and infuse theory from successful case studies of other regions of the world into practice in SSA. Ultimately, with sustainable wastewater management, access to safe water and sanitation can be enhanced in line with realization of sustainable development goal (SDG) 6. The book will be useful to environmental pollution regulators, researchers, and practitioners among other stakeholders with a role in wastewater treatment and management.