This book covers the full spectrum of water and environment conservation, offering management lessons, identifying the barriers to transformative change, and then presenting agendas and initiatives for sustainable global water and environment management. Water is a unique resource and is vital to human beings and ecosystems. At the same time, it is a driver of growth and development. However, in a changing world factors such as rapid population growth and urbanization are having an increasing impact on water and the environment, and managing critical water resources sustainably represents an unprecedented and urgent challenge. As such, the book describes innovative approaches that can be used to support the operationalization and delivery of sustainable water and environment management. ICSDWE2019 is dedicated to sustainable water and environment, with a focus on the water resources management, wastewater treatment and environmental protection. Sharing current knowledge and recent developments, experiences and lessons learned, it stimulates discussion and reflection, to promote a paradigm shift toward sustainable water and environment management.