Reverse osmosis (RO) and nanofiltration (NF) are membrane technologies that can be applied to the treatment of various water sources for the production of drinking water. This newly revised manual brings you the most current information about RO and NF from theory, applications, and design to equipment, installation, operation, and maintenance.The manual provides a thorough overview of RO and NF technologies. Chapter topics encompass theory and applications, design, equipment, installation, operations, and maintenance. Includes tables, figures, appendixes, references, and glossary. Water operators, engineers, educators, or anyone seeking an introduction to membrane water treatment will find this manual to be an excellent reference for all aspects of RO or NF membrane water treatment.Like all AWWA Manuals of Water Supply Practices, M46 is a consensus publication, meaning it has been reveiwed and approved by the AWWA committee responsible for the manual's development.