Sustainable Water Management: Novel Treatment Technologies and Practices offers a comprehensive and interdisciplinary resource that connects cutting-edge water treatment technologies with sustainable management strategies. The book covers essential information about Advanced desalination technologies (RO), forward osmosis (FO), multistage flash (MSF), membrane distillation (MD), brine valorization, and their comparative efficiency. It covers digital innovations such as Digital Twins, artificial intelligence (AI), Internet of Things (IoT), and real-time data monitoring for smart water systems. By bridging the domains of environmental engineering, digital innovation, water science, and policy to support SDG -6 and global water security, this book provides a comprehensive resource. It is designed for students and researchers, practitioners, engineers, and policymakers who want to learn more about integrating emerging innovations in membrane science, desalination, electrochemical methods, and smart digital systems with climate-resilient and circular economy principles. Special emphasis is placed on low-cost, decentralized solutions for resource-limited and water-stressed regions.