Water is fundamental to life, society, and ecological sustainability, yet its management remains one of the most pressing global challenges. "Sustainable Wastewater Treatment and the Circular Economy" addresses this critical issue, bringing together recent advancements in sustainable practices and innovative technological approaches. The book explores cutting-edge methodologies for wastewater treatment, pollution control, and circular economy applications, highlighting their significant roles in ensuring environmental sustainability. Targeting researchers, professionals, policymakers, environmentalists, and graduate students, the book serves as a comprehensive resource for both academic inquiry and practical implementation. This Reprint is intended as a comprehensive resource for databases and promotional flyers. It aims to attract professionals and scholars in environmental management, sustainability studies, water engineering, and related fields. It is an essential reference for anyone involved in addressing environmental challenges and implementing effective solutions for sustainable water resource utilization.