Textbook in PDF format This book covers the latest technologies and challenges for water reuse and unconventional water resources. It presents a comprehensive overview of water reuse as a key approach toward a sustainable solution, and it offers an important multidisciplinary perspective. The book brings together topics spanning from water treatment technologies to social expectation and acceptance, from integrated decisional platforms for policymakers to industrial symbiosis, and from environmental sustainability to legislation aspects. It appeals to both academic and non-academic lecturers, being a valuable resource for teaching and research