Textbook in PDF format This third edition is completely updated, still covering the basics of RO but with new insights as to how to optimize performance. Sections of the book cover the history of RO, membrane and transport model development, pretreatment to minimize membrane deposition and damage, effective cleaning and troubleshooting methods, and data collection and analysis. A new section was added that provides detail about RO and water sustainability. Alternative membrane materials and high-recovery RO are some of the topics included in this new section