Introduction to Desalination and Water Purification Engineering

Clean water scarcity is one of the most pressing global challenges of our time, driving an urgent need for efficient purification technologies. This written course introduces you to the fundamental science and engineering principles behind modern desalination and water filtration systems. Through clear explanations, step-by-step mathematical breakdowns, and practical design examples, you will transition from understanding basic water chemistry to analyzing complex purification plants. You will gain the skills to evaluate energy efficiency, select appropriate membrane technologies, and design sustainable water treatment systems. Learn the fundamental thermodynamic and transport processes governing water purification. Analyze reverse osmosis, nanofiltration, and thermal desalination technologies. Evaluate energy efficiency and integrate modern energy recovery devices into system designs. Identify strategies for membrane fouling mitigation and sustainable concentrate management. Explore renewable energy integration, such as solar-powered desalination systems. Design a conceptual water purification system tailored for communities with limited resources. The course begins with foundational definitions, fluid properties, and the core thermodynamics of saline mixtures before progressing to detailed written modules covering membrane dynamics, thermal separation, and the latest advancements in energy-efficient purification design. This text-only course is designed for aspiring environmental engineers, sustainability advocates, and curious learners seeking a solid foundation in water technology, with no prior engineering background required. Start reading today to build the foundational knowledge needed to address the world's freshwater challenges.